Abstract: A flavor inhalation article 1 comprises: a flavor element 2 which is heated without involving combustion; and a tubular element 4 which forms an airflow channel. The tubular element 4 is equipped with a cylindrical hollow paper tube 26 and a paper liner 28 disposed inside the paper tube 26 in such a manner as to lie along the axial direction X of the paper tube 26. The total of the cross-sectional length of the liner 28 in the diametrical direction Y of the paper tube 26 is greater than the inner diameter d of the paper tube 26.

Abstract: Provided is a heated tobacco segment comprising, as packing, tobacco material and paper in which the total content of lignin and hemicellulose is 0.1-10 wt %.

Abstract: A smoking device that is portable and reusable. The smoking device implements a swivel cover that allows the cover to rotate 180 degrees, such that when the device is in the smoking configuration the smoking bowl is open where smoking material can be placed inside the bowl for smoking. By rotating the top portion by 180 degrees, the smoking pipe is in a closed configuration, such that the top portion fully covers the bowl and extinguishes the smoking material. Further, when the device is in the configuration where the bowl is closed, the device can be neatly stored and transported without emitting unpleasant odors and expelling the smoking content therein.

Abstract: A flame extinguishing cap for a bowl of a smoking pipe, equipped with a rounded body which exhibits a pointed bottom. The cap is configured to rest atop and/or within the bowl of a pipe. A handle disposed on a top of the body facilitates easy placement and retrieval of the cap to and from the bowl of the pipe. The rounded body and pointed bottom help to ensure that the cap displaces a maximal amount of oxygen present within the bowl, helping to ensure that the flame and embers are rapidly extinguished. Rapidly cooling the contents of the bowl ensures the safety of the user, prolongs the lifespan of wooden pipes, and facilitates reignition of the contents of the bowl for later use, saving the user money.

Abstract: A holder for an inhaler article. The holder comprises a housing comprising a housing cavity. The holder further comprises an engagement member located at least partially within the housing cavity. The engagement member is movable relative to the housing between an upstream position and a downstream position. The engagement member comprised a first follower member. The housing comprises a first guide and a first latch, the first follower member is arranged to follow the first guide between a first position, a second position, and a third position. The first latch is arranged such that the first follower member may pass from the first position to the second position, but may not return to the first position without first passing the third position. An inhaler system comprises a holder and an inhaler article.

Abstract: Vaporization devices that include a light source are described. An example vaporization device includes a housing, a power source, a tip, a switch, and a light source. The housing has a first end and a second end. The power source is disposed within the housing. The tip is disposed on the housing and has a heating element connected to the power source and configured to heat a consumable product. The heating element is moveable between an on state and off state. The switch is attached to the housing and moves the heating element between the on state and the off state upon selective activation of the switch. The light source is disposed on the housing and is moveable between an on state and an off state. The light source emits direct light away from the first end of the housing when the light source is in the on state.

Abstract: An electronic cigarette atomizer includes a housing body, a cigarette holder, and a base. A battery bin and a cigarette cartridge bin are disposed in the housing body. A battery is detachably disposed in the battery bin. A first opening communicating with the battery bin and the cigarette cartridge bin is defined at a first end of the housing body. A second opening communicating with the cigarette cartridge bin is defined at a second end of the housing body. The cigarette holder communicating with the second opening is detachably disposed at one end, close to the second opening, of the housing body. A printed circuit board (PCB) is disposed in the base. An ejector pin is connected to the PCB. A mounting hole is further defined on the base. The mounting hole is configured to detachably mount a cigarette cartridge.

Abstract: A smoking device cartridge 10 is mounted in an induction heating type smoking device for use. The smoking device cartridge 10 includes an aerosol-forming substrate 12 having a predetermined extending direction and a predetermined circumferential direction, the aerosol-forming substrate 12 containing tobacco or non-tobacco plants as raw materials; a susceptor 13 located along the extending direction in the aerosol-forming substrate 12, the susceptor 13 being configured to be inductively heatable; a packaging member 16 covering the aerosol-forming substrate 12 along the circumferential direction; and a first support member 11 being in contact with the packaging member 16, the first support member 11 supporting one end of the aerosol-forming substrate 12 in the extending direction, the aerosol-forming substrate 12 including the susceptor 13 in the aerosol-forming substrate 12. The smoking device cartridge 10 has a gap G between the first support member 11 and the packaging member 16.

Abstract: The invention relates to an aerosol generation system comprising an aerosol generation device having a heating element and a consumable for use with the aerosol generation device. The heat transfer element can be heated by the heating element of the aerosol generation device when the consumable is attached to the aerosol generation device. The heat transfer element is configured to be deformed when its temperature is at or above a threshold temperature, such that an area of contact, which exists between the heating element and the heat transfer element when the consumable is attached to the aerosol generation device and the temperature of the heat transfer element is below the threshold temperature, can be reduced, or eliminated.

Abstract: A heater assembly for an aerosol-generating system is provided, the heater assembly including: a liquid aerosol-forming substrate including at least two compounds, the first compound having a first boiling point and the second compound having a second boiling point; a retention material containing the liquid aerosol-forming substrate; and a heating element configured to heat the retention material by passing a current along a length of the heating element, the heating element being formed from a band of material, and a cross-sectional area of the band of material progressively decreasing along a length of the band of material from a maximum cross-sectional area of the band of material at a first end of the band of material to a minimum cross-sectional area of the band of material at a second end of the band of material, to provide a temperature gradient along a surface of the retention material.

Abstract: A vaporizer having a vaporization cavity at an inner bottom of a vaporization core comprises a housing (1), which includes a mouthpiece end (11) provided with a mouthpiece tube (111), and a connecting end (12) closed by a bottom cap (3). A vaporizing assembly (2) is provided between the mouthpiece tube (111) and the bottom cap (3) inside the housing (1). The vaporizing assembly (2) comprises a vaporization core (21), and a vaporizing base (23). The lower portion of the vaporization core (21) is inserted in a central accommodation cavity (232) of the vaporizing base (23), and the upper end of the vaporization core (21) is sleeved on the lower end of the mouthpiece tube (111). The vaporization cavity is provided at the inner bottom of the vaporization core (21), and the vaporization core (21) is provided with a central through-hole extending vertically.

Abstract: An electronic cigarette vaporization core and an electronic cigarette, the electronic cigarette vaporization core includes a porous body and a heating body. The porous body includes a liquid absorbing end and a vaporization end, a bump is arranged on the vaporization end, and the bump includes an end surface facing away from the porous body and a side surface located on an outer periphery of the bump. The heating body is arranged on the end surface, and a distance between at least a part of the heating body and an edge of the end surface is less than a predetermined value, so that both at least a part of the end surface and at least a part of the side surface form vaporization surfaces. Therefore, when the vaporization surface formed on the bump is fully used, utilization efficiency of heat energy of the heating body can be ensured on the basis of improving a heating speed of the heating body.

Abstract: A power supply unit for an aerosol generating device includes a power supply, a heater connector connected to a heater, a voltage conversion IC, a circuit board, a capacitor, a first ground provided inside the circuit board and connected to the other end of the capacitor, a second ground provided inside the circuit board, insulated from the first ground inside the circuit board, and connected to the detection terminal, and a common ground configured to electrically connect the first ground and the second ground. On the second surface, no electronic component is provided in a common ground projection region overlapping with the common ground when viewed from a direction orthogonal to the circuit board.

Abstract: This application provides an aerosol generation device and an infrared heater. The infrared heater includes: a base body, having a closed end and an open end, where a chamber in communication with the open end is formed therein, and the closed end is configured to be inserted into an aerosol-forming substrate received in the chamber; a carbon material containing heating body, accommodated in the chamber and extending longitudinally from a first end to a second end, where the first end is arranged close to the closed end; and a first electrode and a second electrode arranged on the carbon material containing heating body and spaced apart from each other, where both the first electrode and the second electrode are at least partially accommodated in the chamber, and the first electrode and the second electrode are configured to receive electric power.

Abstract: Non-combustible aerosol provision device 100 for generating an aerosol from an aerosol-generating material comprised in a consumable for being received by the device. The device comprises a chamber 102 for receiving the consumable, wherein the device is configured to generate the aerosol from the aerosol-generating material when the consumable is received in the chamber 102. The device 100 further comprises a consumable holder 500 for holding the consumable in the chamber 102, wherein the consumable holder 500 comprises at least two selectively engageable gripping members which are spaced from one another in an axial direction of the chamber 102 to grip different respective points on the consumable, such that the consumable holder is capable of holding, by use of the selectively engageable gripping members, one at a time, each of a plurality of differently-dimensioned consumables at a desired position in the chamber 102.

Abstract: An apparatus for heating aerosolizable material to volatize at least one component of the aerosolizable material is described. The apparatus includes a heating zone for receiving at least a portion of an article including aerosolizable material. The apparatus also includes a heating assembly having a magnetic field generator and a heating element. The magnetic field generator includes an inductor coil configured to generate a varying magnetic field. The heating element includes a base portion that is heatable by penetration with the varying magnetic field and a heating portion protruding from the base portion to heat the heating zone. The heating portion is heatable by the base portion by thermal conduction and the thermal conductivity of the heating portion is greater than the thermal conductivity of at least part of the base portion.

Abstract: An aerosol generating device includes a heating chamber for receiving at least part of an aerosol generating substrate and a plurality of inductively heatable susceptors mounted in the heating chamber. The plurality of inductively heatable susceptors are electrically connected to each other, for example by at least one electrical connectors .

Abstract: A method for controlling the heating of a susceptor of an aerosol-generating device is described, the susceptor being inductively heated by an oscillating circuit driven by an inverter at an operating frequency. The method includes a power delivery mode of the aerosol-generating device, a step of updating the operating frequency being performed during the power delivery mode and including the following sub-steps: determining, using a controller, the resonant frequency of the oscillating circuit during heat of the susceptor; and setting, using the controller, the operating frequency at the determined resonant frequency. The updating step is continuously repeated during power delivery mode of the aerosol-generating device.

Abstract: An inductively heatable susceptor for use with an inductively heated aerosol-generating device or system includes an open-porous inductively heatable ceramic material configured to hold an aerosol-forming liquid and configured to heat the aerosol-forming liquid under the influence of an alternating electromagnetic field. A cartridge for use with an aerosol-generating device includes an aerosol-forming liquid and a susceptor. An aerosol-generating device includes a susceptor.

Abstract: An element for an aerosol-generating system, a cartridge for an aerosol-generating system, and an aerosol-generating system, wherein the element, the cartridge and the aerosol-generating system each include a storage portion for storing an aerosol-forming substrate and a manually operated disabling mechanism for rendering the element, the cartridge, or the aerosol-generating system irreversibly inoperable. The element, the cartridge, and the aerosol-generating system may include an aerosol generator and one or more air passages. The disabling mechanism may be configured to render at least one of the storage portion, the aerosol generator, and the one or more air passages irreversibly inoperable.

Abstract: An electronic smoking device, comprising a capillary buffer having a first end, a second end, a capillary buffer portion between the first end and a second end, and a vapor channel and a liquid conduit formed between first end and the second end and through the capillary buffer portion; the capillary buffer portion is operable to receive under capillary effect excessive liquid from the liquid supply.

Abstract: There is provided an aerosol delivery device including a power source and controller, the controller being configured to control delivery of power from the power source to an aerosol-generator during a single aerosol-generation event according to a first power delivery profile and a subsequent power delivery profile having a different profile to the first power delivery profile, wherein the first power delivery profile has a predetermined output based on the voltage of the power supply.

Abstract: Described is provided a vapor provision system for generating a vapor for user inhalation, the system including a housing, a first user input mechanism configured to provide a first input to control a first aspect of vapor generation and located on a first side of the housing, and a second user input mechanism configured to provide a second input to control a second aspect of vapor generation and located on a second side of the housing, the second side of the housing opposite to the first side of the housing, wherein the first user input mechanism and the second user input mechanism are different types of user input mechanisms.

Abstract: An electrically powered smoking device configured to receive a consumable article includes a housing having a cavity, defining a cavity axis, for receiving at least partially the consumable article, and an optical sensing system for detecting indicia on the consumable article, wherein the optical sensing system includes at least one pinhole and an image detector, wherein the pinhole allows to form an image on an image plane, detectable by the image detector.

Abstract: An aerosol provision device includes a housing; a consumable including aerosol-generating material. The aerosol provision device or the consumable includes an aerosol generator to generate an aerosol from the aerosol-generating material. The device includes a pressure sensor, a temperature sensor, and a high-side load switch coupled to or coupleable with the aerosol generator, and processing circuitry coupled to the high-side load switch, the pressure sensor, and the temperature sensor. The processing circuitry is configured to output a modulated signal with an adjustable duty cycle to cause the high-side load switch to connect and disconnect power to the aerosol generator. The processing circuitry is configured to implement a proportional-integral-derivative (PID) algorithm to adjust the duty cycle based on the processing circuitry determining whether the measurements of temperature or the measurements of pressure take precedence for implementing the PID algorithm to adjust the duty cycle.

Abstract: An inhaler device configured to consume an accumulated capacity to contribute to generation of aerosol or aerosol imparted with flavor, a sensor configured to detect a predefined variable, an interface configured to make a notification to an inhaler of the aerosol, and a controller configured to cause the interface to function in a first mode when a detected or estimated capacity is smaller than a threshold and the variable satisfies a predefined condition for requesting the generation of the aerosol.

Abstract: A computing device for use with an aerosol provision system, configured to generate aerosol from an aerosol generating material for user inhalation, is configured to obtain a first data set, the first data set including data relating to usage of the aerosol provision system, obtain a further data set, the further data set including data associated with the user of the aerosol provision system and not relating to usage of the aerosol provision system, identify a correspondence between usage in the first data set and one or more respective characteristic features of the further data set, and in response to a circumstance having a feature similar to a respective characteristic feature in the further data set, adjust one or more operational parameters of the aerosol provision system responsive to the corresponding usage of the aerosol provision system indicated in the first data set.

Abstract: A system including an aerosol provision system configured to generate aerosol from an aerosol generating material for user inhalation, and a computer configured to obtain user behavior data relating to an interaction by a user with the aerosol provision system, determine default user behavior with respect to the interaction on the basis of the obtained user behavior data, monitor a current interaction by the user with the aerosol provision system, and when the current user interaction deviates from the default user behavior by a pre-determined amount, adjust the operational parameters of the aerosol provision system on the basis of the current user interaction.

Abstract: A system comprising an aerosol provision system and a computer. The aerosol provision system is configured to generate aerosol from an aerosol-generating material. The computer is configured to obtain user behaviour data relating to an amount of an ingredient delivered from the aerosol-generating material to a user of the aerosol provision system. The computer then determines default user behaviour with respect to the amount of the ingredient to be delivered on the basis of the obtained user behaviour data. The computer then identifies, based on the obtained user behaviour, under what conditions to deliver a notification to the user, the notification informing the user of the user's current behaviour.

Abstract: A system comprising an aerosol provision system and a computer. The aerosol provision system is configured to generate aerosol from an aerosol-generating material. The computer is configured to obtain user behaviour data relating to an amount of an ingredient delivered from the aerosol-generating material to a user of the aerosol provision system. The computer then determines default user behaviour with respect to the amount of the ingredient to be delivered on the basis of the obtained user behaviour data. The computer then monitors a current interaction by the user with the aerosol provision system, and when the current user interaction deviates from the default user behaviour with respect to the amount of the ingredient delivered by a pre-determined amount, the computer provides a notification to the user.

Abstract: An electronic cigarette includes a vaporizing unit configured to generate a vapor from a substrate; an air flow inlet; a vapor outlet configured for a user to inhale the vapor; a main vapor flow channel extending past the vaporizing unit from the air flow inlet to the vapor outlet; a pressure sensor arranged to measure a pressure at the main vapor flow channel; and control circuitry configured to monitor user inhalation by: obtaining pressure measurements from the pressure sensor at a sampling frequency; calculating a background pressure as a moving average of the pressure measurements obtained within a moving sampling period; and calculating a current pressure difference as a difference between a current pressure measurement and the background pressure. The control circuitry is configured to select an operation state depending upon the current pressure difference. The operation state is one of: at least a sleep state; and an active state.

Abstract: An aerosol generation system includes an aerosol generation device configured to receive each of a plurality of aerosol generation substrates and to generate a respective aerosol to be inhaled by a user; a feedback interface for receiving user response data in reaction to inhaling the generated aerosol; and a preference identification system. The preference identification system being configured to: for each of the plurality of aerosol generation substrates, obtain user response data from the feedback interface; and identify a preferred aerosol for the user based on the user response data.

Abstract: A heating system for an aerosol generation assembly, includes a coil, a susceptor and an oscillation circuitry configured to generate AC current on the coil from a DC current provided by the battery. The oscillation circuitry comprises includes at least one power circuit including two power transistors (Q1A, Q1B) and a bias line (LA, LB) for each power transistor (Q1A, Q1B). Each power transistor (Q1A, Q1B) includes a gate terminal connected to the corresponding bias line (LA, LB) and able to control the current between the corresponding source and drain terminals. The oscillation circuitry further includes a microcontroller connected to both bias lines (LA, LB) and able to generate a voltage signal on each of the bias lines (LA, LB). The at least one power circuit further includes a potential divider defining an output terminal (T) connected to the microcontroller.

Abstract: An aerosol generation device includes a cover, a light-emitting indicator, and a main body with a main housing forming the exterior surface of the main body configured for generating an aerosol from an aerosol generation substrate and including the light-emitting indicator. The cover is releasably attached or connected to the main housing to cover a portion of the exterior surface and to form part of the exterior surface of the aerosol generation device, and includes a light-transmissive portion. The light-emitting indicator is configured to emit light through the light-transmissive portion in a light propagation direction. The projection of the light-emitting indicator onto a plane which is transversal to the light propagation direction has a first shape and size, and the projection of the light-transmissive portion onto this plane has a second shape and size, the second size is smaller than the first size and fully fits into the first shape.

Abstract: Provided herein are systems and apparatuses for a dispensing device with an electromechanical feedback system.

Abstract: A charging cases for electronic cigarettes includes a container configured to house the electronic smoking device, a micro-control unit (“MCU”) configured to facilitate charging a first rechargeable battery for the electronic smoking device. A plurality of connecting pins are configured to facilitate electrical coupling between the electronic smoking device and the MCU. A connector is movably coupled with the charging case and configured to connect the MCU to external circuitry. A system includes an electronic smoking device comprising a battery, an eCig memory, control electronics, and a charging case comprising a container, a micro-control unit (“MCU”), a connector, and a charging case battery.

Abstract: A waistband for use in a garment is provided. The waistband may have a flexible body including a first portion imparted with a first width dimension, a second portion imparted with a second width dimension, and a transition portion imparted with a third width dimension. The transition portion may be disposed between the first portion and the second portion. The first width dimension of the first portion may be less than the second width dimension of the second portion. Further, the third width dimension of the transition portion may be no greater than about the second width dimension.

Abstract: A structure includes female and male snap buttons supported so as to be covered by left and right concealed modules fixed to one side of two socks, respectively. Thus, when the socks are not being worn, the female and male snap buttons can be exposed an opening operation of the concealed modules to correspondingly couple the two socks to each other so that the two socks form a pair when washed, dried, and stored. When the socks are being worn, the female and male snap buttons can be covered so as not to be exposed to the outside by a closing operation of the concealed modules. Thus, it is possible to prevent protrusions of the female and male snap buttons from contacting skin and clothing on the opposite ankle.

Abstract: Aspects herein are directed to a knit sock having a leg portion and an integrally knit ankle welt extending around a circumference of the leg portion and positioned at a lower end of the leg portion. The knit sock further includes an integrally knit tab located at a back aspect of the ankle welt.

Abstract: According to one aspect of an exemplary embodiment of the disclosure, a mammography imaging system or device includes a brassiere including one or more inflation chambers to assist in automatically positioning the breast. The brassiere includes cup in which the breast is positioned that includes a radiolucent cushion material along with the chambers and one or more inflatable chambers to compress/push the breast forward to position the breast within the cup as desired. In addition, the brassiere includes a vacuum system secured to the front part of the cup to pull the tip or nipple portion of the breast forward with vacuum-based suction technique. With the initial compression of the breast within the cup, the compression paddle of the imaging system can then be employed to apply any necessary additional force across the breast to achieve the required breast position and thickness for the selected image view, with the cushion material limiting any discomfort from the compression.

Abstract: The invention proposes a nursing bra, which comprises a bra body, wherein the bra body comprises two cups and shoulder straps, and the two cups are composed of inner and outer layers; the outer layer is provided with oblique outer opening seams, and the inner layer is provided with oblique inner opening seams, the two sides of the outer opening seam are provided with zipper strips to cooperate with the zipper to open and close the outer opening seam; the top of the shoulder strap is provided with an eye, the connection between the shoulder strap and the cup is provided with a hook, the hook is adaptively connected with the eye, and one side of the shoulder strap extends to the bottom of the cup.

Abstract: Aspects herein are directed to an apparel item that promotes thermo-regulation through the use of engineered openings, venting, and/or stand-off structures. In exemplary aspects, 20-45% of the apparel item may comprise the engineered openings. Vents may be positioned on the apparel item in areas that experience high amounts of air flow to help channel air into the apparel item. The stand-off structures may be positioned on an inner-facing surface of the apparel item where they help to create a space between the apparel item and the wearer's body surface in which air can flow and help cool the wearer by promoting evaporative cooling.

Abstract: The present application relates to the field of heating clothing, specifically to a heating control circuit. The heating control circuit includes: a main controller, a plurality of heating units and an indicator light button circuit. Each heating unit includes a heating circuit, a heating button circuit and an indicator light circuit. The control end of the heating circuit is connected to the main controller, and the output end of the heating circuit is provided with a heating wire connected to an external heating clothing. The output end of the heating button circuit is connected to the main controller. The input end and the output end of the indicator light circuit are both connected to the main controller. The output end of the indicator light button circuit is connected to the main controller.

Abstract: A control device for a safety helmet. The control device comprises a first component and a second component. The first component is a slidable helmet shaft, and the second component is a vest with an elongated receiver for the first component. The control device lessens impact to the head in the event of a collision yet is flexible enough to allow use in an organized sport such as football.

Abstract: A self-adjustable surgical garment includes a front defining a centerline, a back, and two sides connecting the front and the back. The self-adjustable surgical garment also includes a strap having a first segment and a second segment, the second segment separable from the first segment. The first segment of the strap comprises a first strap and a second strap each comprising fastening portions, and wherein the second segment is a third strap which is removably coupled to both of the first strap and the second strap. The fastening portions are removably coupled to a portion of the garment such that a portion of the first segment is in a sterile zone. The region corresponding to a sterile zone of the wearer being at least partially defined as a region within ninety degrees in either direction of the centerline.

Abstract: A waste receiving glove, including a main body to be worn on at least a portion of at least one hand of a user, and a wipe removably connected to at least a portion of the main body to absorb and collect waste of an animal thereon.

Abstract: Various different embodiments of headbands are disclosed, each having a light apparatus and, in particular, a removable light apparatus that is rechargeable through a USB connection. The embodiments each has a grommet that accommodates the passing of a portion of the light apparatus therethrough for frictional fit therewith such that the light apparatus is retained in place by the frictional fit with the grommet and light is projected by the light apparatus outwardly from the grommet when the light apparatus is turned on. The embodiments of the headband differ in the structure of the body and the relationship of the grommet to the body. A preferred embodiment is formed from a cotton elastane blend and includes a pocket from within which the light apparatus is partially received by the grommet. The pocket is formed by overlapping end portions of two interior fabric panels forming the interior surface of the headband.

Abstract: A hooded garment may include a body portion having a neck opening, an outer hood projecting from the neck opening and having an outer face opening, and an inner hood projecting from the neck opening within the outer hood. The inner hood has an inner face opening facing in a forward direction. A lead is located rearward the inner face opening and extends from an exterior of the inner hood to an interior of the outer hood. A constrictor is connected to the inner hood to constrict the inner face opening without constricting the outer face opening.

Abstract: A hair extension bar assembly retains hair extensions for a coloration or treatment process on an elongated platform. First and second comb teeth rows are mounted in parallel on laterally spaced apart side regions of the base, typically on a top flat surface. The use, a portion of the comb teeth captures extension hair. A coloration/treatment process is engaged on captured extension hair in the lateral space between the first comb teeth row and the second comb teeth row. A hair extension retention system can utilize pins pushed into a pin receiving member and/or a magnetic attraction between a magnetically charged element and a magnetically attracting element. The hair extension bar assembly can be supported by a floor, table, clamp or other support system. Hair styling tools can be supported by an accessory retention member, such as a magnetic bar carried by the elongated platform.

Abstract: Control devices for a safety helmet. One embodiment of the invention is a control device comprising a first component and a second component. The first component is a slidable helmet shaft, and the second component is a vest with an elongated receiver for the first component. An additional embodiment comprises four components. The control devices lessen impact to the head in the event of a collision yet are flexible enough to allow use in an organized sport such as football.