The invention provides a shell including a left portion and a right portion which are able to switch between a translation open state in which they are separated from each other by a distance and a closed state in which they are closed with each other, wherein in the translation open state, the left portion and the right portion are able to pivot relative to each other, wherein the shell also includes a locking mechanism and a separation bias device, wherein the locking mechanism is configured to keep the shell in the closed state and is able to be released so as to allow the shell to be placed in the translation open state, and wherein the separation bias device is configured to bias the left portion and the right portion toward the translation open state.

A length-adjustable shoe, of which a length between a front end and a rear end thereof is adjustable, includes an outsole, an upper, a stretch fabric, and a control device. The upper includes a body portion and a heel portion which are mutually separated, wherein the body portion is directly attached on the outsole, and the stretch fabric connects a bottom edge of the heel portion and the outsole. The control device connects the body portion and the heel portion, wherein the control device moves the heel portion relative to the body portion as a whole in an axial direction from the front end to the rear end, which changes the length of the shoe.

A length-adjustable shoe, of which a length between a front end and a rear end thereof is adjustable, includes an outsole, an upper, a stretch fabric, and a control device. The upper includes a body portion and a heel portion which are mutually separated, wherein the body portion is directly attached on the outsole, and the stretch fabric connects a bottom edge of the heel portion and the outsole. The control device connects the body portion and the heel portion, wherein the control device moves the heel portion relative to the body portion as a whole in an axial direction from the front end to the rear end, which changes the length of the shoe.

An article of footwear may include a heel region, a forefoot region, and a midfoot region, the midfoot region disposed adjacent to the forefoot region and the heel region, the article of footwear also including a medial side and a lateral side; an upper extending from the heel region to the forefoot region, wherein the upper includes a plurality of openings through which a fastener is configured to extend; a tongue extending from the forefoot region to the midfoot region; and a flap, the flap extending from the lateral side over a portion of the tongue, toward the medial side, wherein the flap includes a loop through which the fastener is configured to extend.

An article of footwear may include a heel region, a forefoot region, and a midfoot region, the midfoot region disposed adjacent to the forefoot region and the heel region, the article of footwear also including a medial side and a lateral side; an upper extending from the heel region to the forefoot region, wherein the upper includes a plurality of openings through which a fastener is configured to extend; a tongue extending from the forefoot region to the midfoot region; and a flap, the flap extending from the lateral side over a portion of the tongue, toward the medial side, wherein the flap includes a loop through which the fastener is configured to extend.

A shoe having a toe portion, a heel portion and first and second sides, the shoe including a sole, an upper and a closing mechanism extending from a top portion of the upper down along the first side of the shoe and then horizontally between the sole and the upper around the toe portion, around the second side and around the heel portion.

A shoe having a toe portion, a heel portion and first and second sides, the shoe including a sole, an upper and a closing mechanism extending from a top portion of the upper down along the first side of the shoe and then horizontally between the sole and the upper around the toe portion, around the second side and around the heel portion.

The invention provides a shell including a left portion and a right portion which are able to switch between a translation open state in which they are separated from each other by a distance and a closed state in which they are closed with each other, wherein in the translation open state, the left portion and the right portion are able to pivot relative to each other, wherein the shell also includes a locking mechanism and a separation bias device, wherein the locking mechanism is configured to keep the shell in the closed state and is able to be released so as to allow the shell to be placed in the translation open state, and wherein the separation bias device is configured to bias the left portion and the right portion toward the translation open state.

The invention provides a shell including a left portion and a right portion which are able to switch between a translation open state in which they are separated from each other by a distance and a closed state in which they are closed with each other, wherein in the translation open state, the left portion and the right portion are able to pivot relative to each other, wherein the shell also includes a locking mechanism and a separation bias device, wherein the locking mechanism is configured to keep the shell in the closed state and is able to be released so as to allow the shell to be placed in the translation open state, and wherein the separation bias device is configured to bias the left portion and the right portion toward the translation open state.

This disclosure is directed to articles of footwear with adjustable dimensions. More specifically, the articles of footwear disclosed herein include sole structures with adjustable dimensions. In some instances, an article of footwear includes one or more removable insert members configured for adjusting the dimensions of a foot-receiving cavity of the article of footwear. Additionally or alternatively, a sole structure can include one or more flexible portions that can move between compressed and expanded states to accommodate feet of various dimensions. To accommodate the adjustable dimensions of the sole structures, an upper of the article of footwear can be stretchable.