Abstract: A breathable mask includes a main frame, a transparent lens portion, a water-sealing skirt and a breathing tube. The main frame includes a lens frame, a mouth frame and a nose frame interposed therebetween. The water-sealing skirt is integrally formed by an eye skirt, a nose skirt and a mouth skirt, and a skirt frame is arranged in front of the eye skirt. The transparent lens portion and the skirt frame are embedded in the lens frame in a water-sealing manner, and the nose skirt protrudes outward from the nose frame. The transparent lens portion does not project outward from an outer edge of the lens frame at all.

Abstract: A breathable mask includes a body having a main frame, a lens, and a waterproof sealing skirt. The waterproof sealing skirt has a partition dividing the interior of the body into an upper chamber that shields the eyes and a lower chamber that shields the nose, and arranges independent air intake passages and exhaust passages to separate the fresh air inhaled and the dirty air exhaled. Alternatively, a nasal connecting portion having a purge valve can be provided in fluid communication with the lower chamber. It is also possible to provide a three-way connector having a nasal connecting portion, a mouth portion, and a drain portion in fluid communication with one another, wherein the nasal connecting portion is in fluid communication with the lower chamber. The mouth connecting portion is adapted to be contained in the user's mouth when the user well wears the breathable mask.

Abstract: A structure of a mask (1) includes a frame (10), a viewing window assembly (20), and a waterproof skirt assembly (30). The face portion (32) of the waterproof skirt assembly has a circumferential contact area (33). The face portion has a first shape and is made of a material that includes a re-moldable material. When a user (U) puts on the mask through a fastening device (40), the face portion is adapted to be squeezed and deformed to be in a second shape by the user's face, whereby making the circumferential contact area be capable of further following the contour of the user's face; whereas when the user takes off the mask, the face portion remains in the second shape.

Abstract: A water sports mask is provided, which includes a waterproof skirt, a left viewing window, a right viewing window, a head strap and a frame. Left and right skirt portions of the waterproof skirt define left and right hollow front portions, respectively. The left and right viewing windows are embedded with the left and right hollow front portions, respectively, and each of them has a width ranging from 30 mm to 60 mm, and a height ranging from 20 mm to 50 mm. The frame is detachably installed onto the waterproof skirt along peripheries of the left and right hollow front portions thereof.

Abstract: A breathable mask includes a main body and a breathing tube, and the breathing tube and an interior of the main body can be in fluid communication. The body includes a main frame, a lens module and a water-sealing skirt. The main frame has a lens frame, a mouth frame and a nose frame interposed therebetween. The lens module has a transparent lens portion. The water-sealing skirt is integrally formed by an eye skirt, a nose skirt and a mouth skirt, and a skirt frame is arranged in front of the eye skirt. The transparent lens portion and the skirt frame are embedded in the lens frame in a water-sealing manner, and the nose skirt part protrudes outward from the nose frame. The mouth skirt is adapted for one-way fluid communication to the outside through the mouth frame.

Abstract: A breathable mask includes a main frame, a transparent lens portion, a water-sealing skirt and a breathing tube. The main frame includes a lens frame, a mouth frame and a nose frame interposed therebetween. The water-sealing skirt is integrally formed by an eye skirt, a nose skirt and a mouth skirt, and a skirt frame is arranged in front of the eye skirt. The transparent lens portion and the skirt frame are embedded in the lens frame in a water-sealing manner, and the nose skirt protrudes outward from the nose frame. A purge valve is provided between the mouth skirt and the mouth frame. The mouth skirt is adapted for one-way fluid communication to the outside through the purge valve and the mouth frame.

Abstract: The present invention provides a lens assembly structure of swimming goggles. The lens assembly structure comprises two lenses, two retaining walls, two skirt portions, and two frame portions. Each of the lenses includes an eye side and a water side opposing to the eye side. The two retaining walls are provided on the eye sides of the lenses, respectively, and each of the retaining walls defines a visible area and a connection area. Each of the retaining walls has a configuration, and the corresponding skirt portion is disposed along the configuration. The connection area of the lens is affixed in the corresponding frame portion. The configuration of each of the retaining walls is a curve having a contour which is less complicated than a peripheral configuration of the lens.

Abstract: A snorkel mouthpiece assembly, including a main body, a mouthpiece, a connecting component and an accessory, is provided. The mouthpiece is connected to the main body. The connecting component includes a connecting portion and a fixing portion opposite to the connecting portion. The connecting portion is detachably connected to the main body, and the accessory is connected to the fixing portion. In this way, the snorkel mouthpiece assembly could be equipped with a variety of accessories during water or diving activities.

Abstract: A waterproof goggle is provided and includes a frame structure, a lens set and a waterproof leaning structure. The lens set is disposed in the frame structure and the waterproof leaning structure is waterproofly connected to the frame structure. The waterproof leaning structure includes an outer surface, an inner surface, several protrusions and several recesses; the outer surface is opposite to the inner surface, and the protrusions and recesses are alternately disposed on the outer surface; the protrusions are curvedly extended along a longitudinal direction from a front edge to a rear edge of the outer surface, and widths of each of the protrusions are varied along the longitudinal direction. Therefore, the leaning structure can be more easily stretched to fit different users' faces.

Abstract: A waterproof goggle is provided and includes a frame structure, a lens set and a waterproof leaning structure. The lens set is disposed in the frame structure and the waterproof leaning structure is waterproofly connected to the frame structure. The waterproof leaning structure includes an outer surface, an inner surface, several protrusions and several recesses; the outer surface is opposite to the inner surface, and the protrusions and recesses are alternately disposed on the outer surface; the protrusions are curvedly extended along a longitudinal direction from a front edge to a rear edge of the outer surface, and widths of each of the protrusions are varied along the longitudinal direction. Therefore, the leaning structure can be more easily stretched to fit different users' faces.

Abstract: A lens assembly that can be quickly released and assembled is provided. The lens assembly has a lens structure, a fixing structure and a quick release structure. The fixing structure can fix the lens structure around the eyes of a user. The quick release structure has a first quick release portion and a second quick release portion. The first quick release portion is disposed on the lens structure, and the second quick release portion is disposed on the fixing structure. The lens structure and the fixing structure can be assembled and disassembled rapidly by means of the first quick release portion and the second quick release portion without additional tools.

Abstract: A waterproof goggle is provided which includes a frame, a lens and a supporting structure. The frame has an inner ring surface, an outer ring surface which is opposite to the inner ring surface and a plurality of convex engaging teeth which are disposed on the inner ring surface. The lens is surrounded by the inner ring surface and has a non-porous rim portion which is clamped by the convex engaging teeth to affix the lens into the frame. The supporting structure has a covering portion and a supporting portion which extends backwards from the covering portion.

Abstract: A flipper is provided. The flipper includes a pocket, a blade and a strengthening structure. The pocket is for accommodating the foot of the user. The blade extends forwards from the pocket, and the strengthening structure is detachably disposed at the blade and extends to reach the front edge of the blade. The flexural strength of the strengthening structure is larger than that of the blade to constrain the swing angle of the blade relative to the pocket. By using the strengthening structure to constrain the swing angle of the blade, the flipper can not only provide a larger propulsion in the down-kicking state, but also decrease the resistance of water in the up-kicking state.

Abstract: A waterproof mask is provided in this invention. The waterproof mask comprises a frame portion and a leaning portion that is tightly connected to the frame portion. The leaning portion has a plurality of first structures and a plurality of second structures, which are alternately arranged. The first thickness of each of the first structures is thinner than the second thickness of the second structure. Due to the differences in thickness, the leaning portion of the waterproof mask can be adjusted according to the user's face shape for a perfect fit.

Abstract: An adjusting strap is provided. The adjusting strap has a strap body and at least one fastening portion. An end zone of the strap body has at least one fastening hole, which is disposed along the strap body in a lengthwise direction. The fastening portion is disposed on the strap body and located at an inside area adjacent to the fastening hole, the at least one fastening portion is integrally formed with the strap body and extends away from a top surface of the strap body. When the end zone of the strap is bent in reverse, the fastening portion is capable of threading through the fastening hole to be in position.

Abstract: A goggle mask is provided. The goggle mask includes at least one check valve device with a soft body and at least one valve disk. The soft body is integrally connected with the soft nose masking portion of the goggle mask. The soft body has a draining hole. The valve disk is adapted to movably cover the draining hole. With this arrangement, there are no hard objects that come into contact with the user's face, so the user may feel less uncomfortable. A check valve device and a method for manufacturing a check valve device of a goggle mask are also provided.

Abstract: A buckling device for fastening a belt is provided. The buckling device comprises a first portion, a second portion, an elastic portion and at least one push portion. The elastic portion is disposed between the first portion and the second portion. The second portion engages with the belt and the belt is fastened. The at least one push portion is integrally formed with the elastic portion and is exposed from the first portion and the second portion. The at least one push portion is adapted to be pushed inwards by an external force to force the elastic portion to extrude outwards so that the second portion is forced to move outwards to release the belt.

Abstract: A buckling device for fastening a belt is provided. The buckling device comprises a first portion, a second portion and an elastic portion. The elastic portion is made of a material with a shore hardness substantially between A10 and A95. The elastic portion contacts the first portion and the second portion, so that the second portion engages with the belt and the belt is fastened.

Abstract: A fin comprising a foot pocket, two ribs and a web portion is provided in this invention. The foot pocket has a surrounding portion and a base portion, which together define a foot receiving space. The surrounding portion has a plurality of first and second structures; the ribs extend forwards from two sides of the foot pocket respectively; and the web portion is formed between the two ribs. The first structures and the second structures are alternately arranged, and a first thickness of each of the first structures is thicker than a second thickness of each of the second structures. Thereby, the foot pocket of the fin is made flexible and elastic for swimmers or divers with different foot forms and sizes.

Abstract: A goggle structure is disclosed, which includes: a facial mask, having a skirt portion and a nose portion connected with each other; a frame, connected to the skirt portion; a lens assembly, disposed within the frame; and a soft supporting member softer than the frame, disposed between the frame and the skirt portion, and at least located above the nose portion and extending toward the skirt portion. In this way, the soft supporting member can separate at least part of the frame from the skirt portion, resulting in that the frame will not be pressed against the user's face when an external force is exerted.