The present invention relates to shoes which are an excellent fit and have improved comfortability and safety in use particularly in a wet place, and provides non-slip shoes with a webfoot in which a sole part and a webfoot part are integrally formed, thereby allowing walking and swimming at the same time.

A hidden drainage system for shoes, configured on the outsole of a shoe, in which the two sides of the outsole are provided with a plurality of curved sections that are curved inward; the top of the outsole is provided with a plurality of transverse drainage troughs and several longitudinal drainage troughs; each of the transverse drainage troughs extends along the direction of the width of the outsole, and both ends are communicated with each of the curved sections, so that the two ends of each of the transverse drainage troughs will not be exposed on the side face of the outsole; the longitudinal drainage troughs extend along the length of the outsole and are communicated with each of the transverse drainage troughs; thus, water entering the shoe will flow into each of the transverse and longitudinal drainage troughs, and be discharged from each of the transverse drainage troughs.

A hidden drainage system for shoes, configured on the outsole of a shoe, in which the two sides of the outsole are provided with a plurality of curved sections that are curved inward; the top of the outsole is provided with a plurality of transverse drainage troughs and several longitudinal drainage troughs; each of the transverse drainage troughs extends along the direction of the width of the outsole, and both ends are communicated with each of the curved sections, so that the two ends of each of the transverse drainage troughs will not be exposed on the side face of the outsole; the longitudinal drainage troughs extend along the length of the outsole and are communicated with each of the transverse drainage troughs; thus, water entering the shoe will flow into each of the transverse and longitudinal drainage troughs, and be discharged from each of the transverse drainage troughs.

An article of footwear comprising an upper (2) provided with an inner sole (3) and the upper (2) and inner sole (3) delimiting a cavity (4) for receiving a foot. A first sole (5) covering at least parts of the inner sole (3), said first sole (5) being made in one continuous piece and comprising through-going sole holes (8). The inner sole (3) comprises a mesh directly attached to the upper (2) and comprises a first inner sole surface turning towards the cavity (4) defining the bottom of the cavity. The through-going sole holes (8) are covered at least partly by the mesh and provide a fluid communication between the cavity (4) and the outside of the second sole surface, thereby allowing liquid such as water to run through the sole holes (8) between the cavity (4) and the outside of the footwear.

An article of footwear comprising an upper (2) provided with an inner sole (3) and the upper (2) and inner sole (3) delimiting a cavity (4) for receiving a foot. A first sole (5) covering at least parts of the inner sole (3), said first sole (5) being made in one continuous piece and comprising through-going sole holes (8). The inner sole (3) comprises a mesh directly attached to the upper (2) and comprises a first inner sole surface turning towards the cavity (4) defining the bottom of the cavity. The through-going sole holes (8) are covered at least partly by the mesh and provide a fluid communication between the cavity (4) and the outside of the second sole surface, thereby allowing liquid such as water to run through the sole holes (8) between the cavity (4) and the outside of the footwear.

A fastening device can be attached to an activity equipment. The fastening device includes at least one buckle and a flexible band. At least one positioning pillar is provided inside the buckle. The flexible band has two end portions, and each end portion has at least one positioning hole. The buckle and the flexible band can be assembled together and separated from each other. In an assembled state, the positioning pillar inserts inside the positioning hole so that the end portion is fixed inside the buckle and the flexible band extends outside the buckle from a rear end of the buckle.

A fastening device can be attached to an activity equipment. The fastening device includes at least one buckle and a flexible band. At least one positioning pillar is provided inside the buckle. The flexible band has two end portions, and each end portion has at least one positioning hole. The buckle and the flexible band can be assembled together and separated from each other. In an assembled state, the positioning pillar inserts inside the positioning hole so that the end portion is fixed inside the buckle and the flexible band extends outside the buckle from a rear end of the buckle.

A blank of flexible sheet material used to form and article of footwear upper and an article of footwear having a sole attached to the upper. According to one embodiment the blank of flexible sheet material includes a main bottom portion having a front toe area, a rear heel area and opposed sides, said main bottom portion being in the general shape of a foot sole. A front strap portion having an elongated shape extends outward from one of the opposed sides of the main bottom portion near the front toe area and having a free end, and a pair of heel-strap flaps extend outward from opposite sides of the main bottom portion near the rear heel area and configured to form an enclosed heel portion and a rear strap of the shoe upper. According to another embodiment the front strap is formed separately from the main bottom portion and pair of heel-strap flaps.

A method of coupling a boot toe body to a fin apparatus is disclosed. The fin apparatus includes a fin body coupled to a boot coupling body. The method involves connecting a first boot connector on a first end of the boot coupling body to a first complementary boot connector on a top side of the boot toe body, and connecting a second boot connector on a second end of the boot coupling body to a second complementary boot connector on a bottom side of the boot toe body. Boot toe bodies, fin apparatuses, and systems including the boot toe bodies and fin apparatuses are also disclosed.

A method of coupling a boot toe body to a fin apparatus is disclosed. The fin apparatus includes a fin body coupled to a boot coupling body. The method involves connecting a first boot connector on a first end of the boot coupling body to a first complementary boot connector on a top side of the boot toe body, and connecting a second boot connector on a second end of the boot coupling body to a second complementary boot connector on a bottom side of the boot toe body. Boot toe bodies, fin apparatuses, and systems including the boot toe bodies and fin apparatuses are also disclosed.