A size adjustable footwear includes an upper, an insole, a midsole, an outer sole, and a size adjustment mechanism. The midsole includes a heel plate and a toe plate. The upper is perimetrically connected around the midsole. The insole is adjacently connected atop the midsole and internally positioned within the upper. The outer sole is perimetrically connected around the midsole as the midsole is positioned in between the insole and the outer sole. The heel plate and the toe plate are slidably engaged to the size adjustment mechanism. The size adjustment mechanism is operatively integrated in between the heel plate and the toe plate, wherein the size adjustment mechanism elastically expands and contracts the upper, the midsole, and the outer sole.

A size adjustable footwear includes an upper, an insole, a midsole, an outer sole, and a size adjustment mechanism. The midsole includes a heel plate and a toe plate. The upper is perimetrically connected around the midsole. The insole is adjacently connected atop the midsole and internally positioned within the upper. The outer sole is perimetrically connected around the midsole as the midsole is positioned in between the insole and the outer sole. The heel plate and the toe plate are slidably engaged to the size adjustment mechanism. The size adjustment mechanism is operatively integrated in between the heel plate and the toe plate, wherein the size adjustment mechanism elastically expands and contracts the upper, the midsole, and the outer sole.

Described are shoes for ball sports including an upper having an outer surface. An actuator is configured to change at least one surface property of a portion of the outer surface of the upper, and a sensor is configured to be sensitive to movements of the shoe. A processing unit is connected to the actuator and the sensor and configured to process sensor data retrieved from the sensor and to cause the actuator to change the at least one surface property of the portion of the outer surface of the upper if a predetermined event is detected in the sensor data.

Described are shoes for ball sports including an upper having an outer surface. An actuator is configured to change at least one surface property of a portion of the outer surface of the upper, and a sensor is configured to be sensitive to movements of the shoe. A processing unit is connected to the actuator and the sensor and configured to process sensor data retrieved from the sensor and to cause the actuator to change the at least one surface property of the portion of the outer surface of the upper if a predetermined event is detected in the sensor data.

A pre-tensioned article and method of making an article of footwear involving pre-tensioning a sole structure during manufacturing. In some embodiments, the sole structure may include a plurality of apertures that provide an auxetic effect. In further embodiments, the upper may also be pre-tensioned in a similar manner as the sole structure.

A pre-tensioned article and method of making an article of footwear involving pre-tensioning a sole structure during manufacturing. In some embodiments, the sole structure may include a plurality of apertures that provide an auxetic effect. In further embodiments, the upper may also be pre-tensioned in a similar manner as the sole structure.

Ballet shoe, with a box with an open end and a closed end, an upper section and a small lower box and a shank, which can be removed from the box, with a male element that is inserted into the small box. The small box has flat walls and a flat bottom, and a flexible upper partition designed to rest on the male element of the shank under the user's weight. The shank core is then retained by the user whilst in use, and free to be removed when not.

A dynamic pressure controlling footwear is disclosed and includes a main body, a control box and plural dynamic pressure controlling components. The main body includes a vamp disposed on an airbag. The control box includes a microprocessor and is disposed on a top surface region of the vamp. Each dynamic pressure controlling component is positioned on the airbag and includes an actuating pump and a pressure sensor packaged on a substrate by a semiconductor process. The substrate is positioned on the airbag and electrically connected to the microprocessor of the control box through a conductor. The actuating pump is in fluid communication with the airbag for inflating the airbag. The pressure sensor detects an inner pressure of the airbag to generate a pressure information. The microprocessor enables or disables the actuating pump according to the pressure information, so that the inner pressure of the airbag is adjusted.

A dynamic pressure controlling footwear is disclosed and includes a main body, a control box and plural dynamic pressure controlling components. The main body includes a vamp disposed on an airbag. The control box includes a microprocessor and is disposed on a top surface region of the vamp. Each dynamic pressure controlling component is positioned on the airbag and includes an actuating pump and a pressure sensor packaged on a substrate by a semiconductor process. The substrate is positioned on the airbag and electrically connected to the microprocessor of the control box through a conductor. The actuating pump is in fluid communication with the airbag for inflating the airbag. The pressure sensor detects an inner pressure of the airbag to generate a pressure information. The microprocessor enables or disables the actuating pump according to the pressure information, so that the inner pressure of the airbag is adjusted.

An article of footwear includes an upper defining an interior void and a first cable movable in a tightening direction to move the upper into a tightened state and movable in a loosening direction to move the upper into a loosened state. The article of footwear also includes a tightening grip operable to be moved away from the upper in a first direction to move the first cable in the tightening direction and a cable lock operable in a locked state to restrict movement of the first cable in the loosening direction and operable in an unlocked state to permit movement of the first cable in the loosening direction. A release grip is operable to be moved away from the upper in a second direction to move the cable lock from the locked state to the unlocked state, whereby the release grip is separate from the tightening grip.