Abstract: The inventive golf club comprises a head of a metal having a face and a flexural range, defined in the face, where the quantity of flexure in a direction perpendicular to the face is at least 45% of the maximum quantity of vertical flexure of the face. The flexural range is arranged in coincidence with a hitting spot distribution range of a player in the face. Alternatively, a flexural range having a spring constant of at least 2 kN/mm and not more than 4 kN/mm is present in the face of the inventive golf club.

Abstract: An undershirt including a main constituent portion made of stretchable materials that include a first-type material, a second-type material, and a third-type material. The first-type material has a straining force greater than a straining force of the second-type material, and the second-type material has a straining force greater than a straining force of the third-type material. The first-type material is arranged to cover at least part of musculus triceps brachii. The third-type material is arranged to cover at least a part of a lateral portion of musculus trapezius, at least a part of superior portion of musculus latissimus dorsi, and at least a part of a medial portion of musculus deltoideus in a vicinity of scapula. The second-type material is arranged in regions other than the regions where the first-type and third-type materials are arranged.

Abstract: A shoe including an upper material using a double raschel warp knitted fabric is provided. The upper material includes a first surface having a non-mesh structure and a second surface having a non-mesh structure part (A) and mesh structure parts (B, C). The burst strengths burst strengths A, B and C of the parts (A, B and C) satisfy the relationship: A>B>C. The non-mesh structure part (A) is disposed in a part surrounding the tiptoe, a part connecting to a shoe sole and disposed in both sides of the foot for example, in a stripe. The mesh structure part (B) is disposed in the vicinity of the surface of the toe and the mesh structure part (C) is disposed in the both sides of the foot for example, in a stripe. Thus, a shoe having lightweight, air permeability and durability and a double raschel knitted fabric used for the shoe are provided.

Abstract: An underpant garment worn in a state of being substantially in close contact with a surface of a lower body of a wearer includes a main constituent portion made of stretchable materials that include a first-type material and a second-type material. The first-type material has a straining force greater than a straining force of the second-type material. In the underpant garment, the first-type material is arranged in regions such that in each region the first-type material covers at least a region including a part of musculus gluteus maximus, a part of musculus gluteus medius, a part of musculus tensor faciae latae, and a part of tractus iliotibialis, and the second-type material is arranged in regions other than the regions where the first-type material is arranged. This allows the wearer to smoothly shift from a static state to a dynamic state such as a running state, and helps prevent a displacement of the center of gravity when the wearer is in motion.

Abstract: A ball-hitting portion is integrally coated with an elastic body, and thus a bat with durability that can carry the ball far can be obtained. The baseball or softball bat includes a tip portion, a ball-hitting portion, a tapered portion and a grip portion. A depression in the ball-hitting portion is integrally coated with the elastic body having a high rebound property value as a physical property. Thus, when hitting the ball, the elastic body will be compressed and deform, and energy loss due to the ball deformation will be suppressed. Moreover, the ball is carried additionally with a restoring force of the elastic body. Consequently, the bat has rebound property superior to a conventional one, and can carry the ball farther.

Abstract: An athletic glove comprises a back portion and a palm portion. A tape is stitched to the back portion. The tape extends from a little finger portion, a ring finger portion and a middle finger portion toward the base of a thumb portion, and can supply proper fastening force to the little finger, the ring finger and the middle finger of the user's hand when the user grasps an object.

Abstract: A system for assisting shoe selection can select and present a shoe type that fits a customer by estimating the anatomical characteristics of a foot from the state of the foot. The system includes the following: a measured data input portion for measuring and inputting data that show the state of a foot of a person to be measured; a normalization processing portion for normalizing the data input from the measured data input portion and storing the normalized data at least temporarily; a shoe catalog database for storing information of a plurality of types of shoes; and a selection portion for estimating the anatomical characteristics of the foot of the person based on the normalized data, referring to the shoe catalog database based on the anatomical characteristics, and selecting and presenting a shoe type that fits the person.

Abstract: A golf club head comprising of a top, a sole, a toe, a heel, a front plate having a front and rear side, and an extended back portion integral with the sole and the rear side defining a cavity wherein the extended back portion is integral with the rear side between the top and the sole of the golf club head.

Abstract: A ball catching tool comprises an outer leather member, an inner leather member and an elastic member. The outer leather member is formed by sewing a leather palm and a leather back to each other. The inner leather member, inserted into the outer leather member, is formed by sewing a palm member located on the side of the leather palm and a back member located on the side of the leather back to each other and provided with a plurality of stalls including a thumb stall receiving the thumb of the user. The elastic member is fixed to the back member partially forming the thumb stall to extend along the back member from one end of the thumb stall toward the other end of the thumb stall in the width direction of the thumb stall for fixing the thumb of the user in the thumb stall.

Abstract: A sole portion of a golf club head includes a first portion contacting with ground in address position and a second portion being raised in a direction from the first portion toward a toe portion. The first and second portions are each in a shape of a curved surface convex toward the outside of a head body. An angle of the second portion with respect to the first portion is adjusted such that an angle formed by a first plane contacting with a vertex of the first portion in address position with a prescribed lie angle and a second plane contacting with a vertex of the second portion becomes at least 30° and at most 60°.

Abstract: An iron golf club head consisting of a back portion, a weight portion, and the cavity portion, which form a “multi-tier” weight distribution configuration. The cavity portion being delineated by a top segment, a toe segment, a sole segment and a heel segment. The first tier is defined by the back portion between the sole and the sole segment of the cavity portion. The second tier is defined by the weight portion, which is recessed from the back portion and is located between the sole segment of the cavity portion and a top edge that is located a predefined height above the sole segment. The third tier of the weight distribution configuration is defined by the cavity portion between the upper segment of the weight portion and the upper edge of the cavity portion.

Abstract: A golf club head includes: a head body including a crown portion having a plurality of openings, a face portion, a toe portion, a heel portion and a sole portion; a crown part mounted to the head body so as to close the openings, and a support portion provided between the openings for supporting the crown part. The support portion is X-shaped, for example.

Abstract: A form-fitting chest protector. In one embodiment, the chest protector includes a pair of detachably secured wing portions. A main portion of the chest protector has a variable thickness and substantially overlies the chest and abdomen of the athlete to absorb impacts to the athlete from a projectile. The wing portions are separate from the main portion, but are detachably secured to the chest protector to permit each wing portion to be adjustable when the chest protector is worn by the athlete. The wing portions facilitate a constant form-fit no matter how the body of the athlete flexes.

Abstract: A sole structure for an athletic shoe includes a heel region and a forefoot region, a midsole of a soft elastic material including a midsole heel portion at the heel region, and an outsole of a harder material including an outsole heel portion at the heel region and an outsole forefoot portion that extends from the outsole heel portion to the forefoot region. The midsole heel portion has wavy corrugations on a lower surface thereof and a smooth plane on an upper surface thereof. The outsole heel portion includes a corrugated wavy plate with corrugations through its thickness, which are in phase with the wavy corrugations on the lower surface of the midsole heel portion.