A ventilation apparatus for an article of footwear has a hollow air pump chamber, one or more one-way air valves positioned through the top wall of the air pump chamber, and an air intake channel with a one-way valve coupled through an opening into the air pump chamber. Action of stepping down on the air pump chamber deforms the walls and increases pressure in the air pump chamber, and forces air out of the air pump chamber through the one or more one-way air valves positioned through the top wall of the air pump chamber, and action of lifting weight off the air pump chamber causes the deformed walls to return toward original form, decreasing pressure in the air pump chamber and drawing air in through the air intake channel.

A breathable sole, including a midsole and an outsole; a bottom surface of the midsole has an air chamber, an air inlet channel and a single-way air outlet channel; the air chamber is provided at a heel position; the air inlet channel comprises a dispersed air-collecting channel and an air-guiding channel; the dispersed air-collecting channel is provided at the sole and is provided with air inlet holes; the air-guiding channel is connected with a rear position of the dispersed air-collecting channel and the air chamber; the single-way air outlet channel is a Tesla Valve which has an end connecting to a front position of the air chamber, and has another end provided with an air outlet hole penetrating the upper surface of midsole; the single-way air outlet channel imposes a higher resistance against air flowing from the air outlet hole to the air chamber.

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.

A ventilation apparatus for an article of footwear has a hollow air pump chamber, one or more one-way air valves positioned through the top wall of the air pump chamber, and an air intake channel with a one-way valve coupled through an opening into the air pump chamber. Action of stepping down on the air pump chamber deforms the walls and increases pressure in the air pump chamber, and forces air out of the air pump chamber through the one or more one-way air valves positioned through the top wall of the air pump chamber, and action of lifting weight off the air pump chamber causes the deformed walls to return toward original form, decreasing pressure in the air pump chamber and drawing air in through the air intake channel.

An insole/sole structure contains: a top pad, two massage column modules, a form pad, and a bottom pad. The top pad includes at least one accommodation groove. A respective one of the at least one massage column module includes a holding portion and multiple flexible massaging columns. The respective one massage column module is connected on the top pad by using the holding portion. The multiple flexible massaging columns are held on the holding portion to correspond to a profile of a respective one accommodation groove. A profile of the foam pad and a profile of the bottom pad correspond to a profile of the top pad, such that when the foam pad and the bottom pad are connected, the foam pad and the bottom pad are closed, and the respective one massage column module is limited between the top pad and the foam pad.

An immobility system for a free-fall environment includes an immobility device including at least one suction cup configured to engage the immobility device to a surface, and a valve that, when activated, results in release of the at least one suction cup from engagement with the surface. A remote controller is spaced apart from the valve and is configured to selectably transmit an activation signal to the valve. An immobility device includes at least one suction cup configured to engage the immobility device to a surface, and a valve that, when activated, results in release of the at least one suction cup from engagement with the surface. A receiver at the device is configured to receive an activation signal and activate the valve.

Provided is a shoe sole, wherein ventilation grooves recessed in the thickness direction of the shoe sole are formed in the upper surface part, the shoe sole has a forefoot portion that has an air intake port formed in at least one of a medial side wall and a lateral side wall in the side wall part to be in communication with the ventilation grooves and draw air from outside into the ventilation grooves, the shoe sole has a midfoot portion that has an air outlet port formed in at least one of the medial side wall and the lateral side wall to be in communication with the air intake port through the ventilation grooves and discharge air in the ventilation groove to the outside, and at least a part of the ventilation grooves constitutes an air intake groove extending obliquely rearward from the air intake port.

A walking-assisted air-jet insole includes an insole base. A plurality of pressed-air outlet units that can generate airflow based on stepping pressure are provided on the insole base; the pressed-air outlet unit includes a cavity for retaining air. An upper part of the insole base is provided with an upper air hole that communicates with the cavity, and a lower part of the insole base is provided with an air sac part that is elastically deformed and restored based on the stepping pressure. A volume of the cavity can be changed based on the elastic deformation and restoration of the air sac part. A lower end of the air sac part is provided with a convex column that moves up and down based on the stepping pressure. The cavity includes an upper cavity portion and a lower cavity portion from top to bottom.

Provided is a dampness prevention function-equipped insole (50) including an upper layer portion (11) formed in a foot shape, with small holes (4) being formed therein, an intermediate layer portion (51) including tubes (12a) in which air holes (5) are bored at positions corresponding to the small holes (4), the tubes (12a) being installed in a front-rear direction at a front part and a rear part and being installed in a left-right direction in a middle part, and a lower layer portion (13) in which mesh cloth woven in a lattice shape is formed in the foot shape, in which the insole (50) is formed in the foot shape and placed in a shoe in which the upper layer portion (11), the intermediate layer portion (51), and the lower layer portion (13) are sewn such that the tubes (12a) maintain a predetermined interval.

Provided is a ventilated shoe. The shoe includes an upper. An outsole has an upper edge end provided on an upper sole part, an air chamber provided inside the upper edge end, and an ascending and descending edge surface provided on an outer edge of a lower sole part in such a way as to be inclined outwards and upwards from a bottom surface, the outer edge of the lower sole part being provided under the upper edge end to be opposite thereto. An insole is secured to the upper edge end to cover a top of the air chamber, with a plurality of ventilation holes being formed in a front portion thereof. A backflow prevention valve prevents outside air supplied to the air chamber from flowing backwards. An air inlet pipe supplies the outside air to the backflow prevention valve.