Disclosed is an adjustment mechanism for an electric power-driven shoe, the mechanism comprising a shoe sole (1), wherein a plurality of rolling wheels (2) are arranged below the shoe sole (1); a foot-positioning mechanism is arranged above the shoe sole (1) and is provided with an angle-adjusting mechanism for adjusting an angle between the foot-positioning mechanism and a lengthwise direction of the shoe sole (1).

The foot-attached exercise rollers comprises a toe cover, a strap, a plurality of rollers, and a plurality of grips. The foot-attached exercise rollers may be an exercise device that may be adapted to be worn on the foot. The toe cover may cover the front of a foot held in place by the strap. The plurality of rollers may be adapted to reduce friction between the front of the toe cover and a floor and the plurality of grips may be adapted to increase friction between the rear of the toe cover and the floor. The foot-attached exercise rollers may be adapted to be worn in pairs to exercise the user's core as a user moves the feet back and forth on the plurality of rollers while attempting to keeping the upper body still.

A skate includes an inverted groove-shaped base secured to a boot and including front and rear pins; an elongated frame including front and rear sets of a transverse inner groove and a transverse open groove communicating with the transverse inner groove, and a threaded hole on the transverse open groove of the front set wherein either pin is disposed in the transverse inner groove and the elongated frame abuts an underside of the base; and a locking device including a spring biased block member disposed in the transverse open groove of the front set and having two projections at two ends respectively, a screw driven through a positioning member into the threaded hole to fasten the positioning member in the transverse open groove of the front set so that the block member abuts the front pin to block same in an assembled state.

In a first aspect, a wearable device is provided for mounting to a foot of a user. The wearable device includes a support structure having a longitudinal axis, and having an interior. The support structure is positioned to support a foot of a user, wherein the support structure has a ground engagement surface. The wearable device further includes a first wheel shaft having a first wheel connected thereto, and a second wheel shaft having a second wheel connected thereto. The first and second wheel shafts are connected to the support structure and are movable between a stowage position in which the first and second wheel shafts hold the first and second wheels above the ground engagement surface and a rolling position in which the first and second wheel shaft hold the first and second wheels below the ground engagement surface. In both the stowage and rolling positions, the first and second wheels are laterally outside of the interior of the support structure.

A skateboard foot strap system is provided which may have a plurality of coupling discs each having a top portion and bottom portion. Further, the top portion may comprise a plurality of concave down edge structures where each of the plurality of concave down edge structures may terminate into a planar top surface, each of the plurality of concave down edge structures may terminate into a planar bottom surface, and the bottom portion may utilize a plurality of threaded bolts extending from the planar bottom surface and may be structured to be disposed through respective coupling apertures. Further, the system may utilize an elongate flexible foot strap having a first width dimension smaller than that of a second width dimension of each of the plurality of coupling discs. The elongate flexible foot strap may be disposed between the plurality of threaded bolts.

The invention provides a sports equipment with an interchangeable sports function, including a front main body, a rear main body and an interchangeable accessory; the front main body is provided with a front strap for fixing a flat shoe, and a non-detachable front roller after being implemented with the interchangeable accessory; the rear main body is disposed directly behind the front main body and capable of being retractably adjusted back and forth relative to the front main body, the rear main body is provided with a rear strap for fixing the flat shoe; the interchangeable sports function comprises a roller, a snowboard, a skate blade and a snow-walking board, the interchangeable sports function can be achieved by installing the snowboard, a front skate blade or the snow-walking board, and detachably mounting on a rear quick-release fitting on the rear main body.

A modular skating assembly for switching between types of skating styles includes a boot that is configured to couple to a foot of a user. A first coupler is coupled to a sole of the boot. Each of a plurality of second couplers is complementary to the first coupler. Each of a plurality of skate modules is coupled to a respective second coupler. The respective second coupler is positioned to couple to the first coupler to selectively couple the skate module to the boot. The improvement is the plurality of skate modules being selectively couplable to the boot, such that a pair of the boots is selectively configurable to enable a particular style of skating, such as in-line skating and roller skating.

The convertible shoe with interchangeable sole consists of an upper to hold the foot and an interchangeable outsole. There is an attachment surface on the underside of the upper and an attachment surface on the topside of the outsole, and the two attachment surfaces are paired and configured to securely attach the two components while also being detachable to allow for the interchange of different outsoles having different tread surfaces. The attachment surfaces are a non-flat contoured shape. There are two protruding ridges on one surface, one substantially under the toe and the other under the heel and part of the arch. These mate with a recessed channel on the other surface. There is also attachment material on both surfaces that are mated and provide a secure attachment.

An easy-wearing skate is provided, wherein the easy-wearing skate includes a boot having a chamber open upward, the boot further includes a fixed shell having a rear opening, and a movable shell rotatably connected to the fixed shell and configured to cover the rear opening, the movable shell is swingable away from the rear opening, a first tightening strap is connected to a side of the fixed shell, a locking device is connected to another side of the fixed shell, the first tightening strap is releasably locked by the locking device, and as the first tightening strap is released from the locking device, the movable shell can swing away relative to the fixed shell.

The convertible shoe with interchangeable sole consists of an upper to hold the foot and an interchangeable outsole. There is an attachment surface on the underside of the upper and an attachment surface on the topside of the outsole, and the two attachment surfaces are paired and configured to securely attach the two components while also being detachable to allow for the interchange of different outsoles having different tread surfaces. The attachment surfaces are a non-flat contoured shape. There are two protruding ridges on one surface, one substantially under the toe and the other under the heel and part of the arch. These mate with a recessed channel on the other surface. There is also attachment material on both surfaces that are mated and provide a secure attachment.