Described is an insole including: a first body having an upper surface, having a first channel, extending close to an edge of said upper surface, and a second channel, extending between a central zone and an edge of said upper surface; a second body, in contact with the upper surface of the first body for closing said first and second channels, including at least a first through opening, positioned at the first channel, and at least a second through opening, positioned at the second channel; an attachment, constrained to said first and second body, including at least a first conduit, in fluid communication with the first channel and with the outside environment, and at least a second conduits, in fluid communication with the second channel and with the outside environment.

Described is an insole including: a first body having an upper surface, having a first channel, extending close to an edge of said upper surface, and a second channel, extending between a central zone and an edge of said upper surface; a second body, in contact with the upper surface of the first body for closing said first and second channels, including at least a first through opening, positioned at the first channel, and at least a second through opening, positioned at the second channel; an attachment, constrained to said first and second body, including at least a first conduit, in fluid communication with the first channel and with the outside environment, and at least a second conduits, in fluid communication with the second channel and with the outside environment.

An article of footwear is provided that includes a sole structure and an upper attached to the sole structure. The upper includes an exterior layer and a base layer, and the exterior layer includes a biodegradable layer and a biologically active agent capable of biodegrading the biodegradable layer.

A last for forming an upper of an article of footwear includes an exterior surface, where the exterior surface includes a plurality of three dimensional structural surface components disposed over at least 50% of the exterior surface of the last.

Exemplary embodiments of the present disclosure are directed towards a self-ventilating footwear assembly comprising: one or more cylindrical and barrel shaped profile structures includes one or more spore structures, the one or more spore structures is configured to provide ventilation and protection to the foot of the wearer, and one or more conical shape profile structures integrating with the one or more cylindrical and barrel shaped profile structures and which is configured to connect an outer surface of a shoe vamp. The self-ventilating footwear assembly further comprising a hollow portion of the interior structure configured to allow the air passed through the one or more conical shape profile structures for providing both superior ventilation and protection to the foot of the wearer, and the specialized structures is configured to provide physical protection and shock absorption against object striking the top and sides of the wearer's foot.

Disclosed are a shock absorption and ventilation enhanced shoe sole and a preparation method therefor. The shoe sole comprises a body. At least one layer of communication-type air passage is provided in the body, and a plurality of first air holes provided in the circumferential side face of the body and a plurality of second air holes provided in the upper surface of the body cooperate, so that air intake and deflation for heat exhaust can be alternately achieved in the process of alternately lifting a foot and treading of a user, thereby preventing heat from accumulating on the foot sole, being beneficial to foot health, reducing foot perspiration, and helping slow down heart rate acceleration; and in addition, the shoe sole can achieve the functions of shock absorption, buffering, ventilation and power assistance, so that the shoe sole is more comfortable to wear.

Disclosed are a shock absorption and ventilation enhanced shoe sole and a preparation method therefor. The shoe sole comprises a body. At least one layer of communication-type air passage is provided in the body, and a plurality of first air holes provided in the circumferential side face of the body and a plurality of second air holes provided in the upper surface of the body cooperate, so that air intake and deflation for heat exhaust can be alternately achieved in the process of alternately lifting a foot and treading of a user, thereby preventing heat from accumulating on the foot sole, being beneficial to foot health, reducing foot perspiration, and helping slow down heart rate acceleration; and in addition, the shoe sole can achieve the functions of shock absorption, buffering, ventilation and power assistance, so that the shoe sole is more comfortable to wear.

A sole for footwear, including a resilient structural member extending in a direction from toe to heel and having a tread surface, the sole having a plurality of incisions extending transversely to the toe-to-heel direction. The incisions include a first portion extending to a first depth into the sole from the tread surface and a second portion extending to a further depth into the sole from the lower outlet of the first portion. The first portion has a width, measured transversely to the longitudinal extent of the incision, which is smaller than the corresponding width of the second portion. At least the second portion of the incisions is open at the side of the sole.

An article of footwear includes a motorized tensioning system, sensors, and a gesture control system. Based on information received from one or more sensors the gesture control system may detect a prompting gesture and enters an armed mode for receiving further instructions. In the armed mode the system may detect a variety of different control gestures that correspond to different tensioning commands.

A disposable, low friction, breathable bootie is provided that accommodates the shape and size of a human foot. The bootie is made from a thin, flexible polymer sheet-like material in a generally tubular form. The bootie has a foot portion, a lower leg portion, and an ankle portion therebetween. The bootie includes a series of air vents in the foot portion and lower leg portion to provide airflow to the foot, while such vents are located to avoid key friction points between the foot and the ski boot during the donning and doffing processes. The bootie facilitates donning and doffing a ski boot. The vents provide breathability while the bootie is worn within the ski boot.