Abstract: An inner sole for an article of footwear that is capable of being removed therefrom, the sole having an upper surface adapted to support the user's foot, and a lower surface resting at the bottom of the article of footwear, the sole having an anti-slip insert positioned in the area of the metatarsophalangeal articulation and including an abrasive paper positioned in a recess of the lower surface. The invention is also directed to a sports boot, such as a ski boot, equipped with such an inner sole.

Abstract: A comfort upper for footwear adapted in particular to equip a sports boot and an inner liner for a sports boot. The upper includes a stiffener, positioned between the inner lining and the outer covering, which is made of a thermoformable material. The upper also includes a comfort element, positioned between the inner lining and the stiffener, which is softer than the stiffener and which is possibly made of thermoformable material. This comfort element includes perforations enabling the thermoforming of the stiffener by propulsion of hot air within the footwear.

Abstract: A comfort upper for footwear adapted in particular to equip a sports boot and an inner liner for a sports boot. The upper includes a stiffener, positioned between the inner lining and the outer covering, which is made of a thermoformable material. The upper also includes a comfort element, positioned between the inner lining and the stiffener, which is softer than the stiffener and which is possibly made of thermoformable material. This comfort element includes perforations enabling the thermoforming of the stiffener by propulsion of hot air within the footwear.

Abstract: A footwear that opens at the front and has a tongue for protecting the top of the foot, which is adjustable in position by way of a fixing system. The fixing system is constituted of a flexible band which, provided with woven strips on one surface, is folded over itself at one free end to form a loop that winds on a device that attaches the tongue. The invention allows the removability of the tongue, as well as its continuous adjustment longitudinally to the footwear, while guaranteeing the solid retention thereof on the front end of the latter.

Abstract: A shoe whose upper has an interior liner with a layer contiguous to the foot, provided with a structure having of a viscoelastic substance assembled to a flexible and elastic film. The substance is characterized in that the viscoelastic substance is provided with a high elastic deformation capacity with a low elastic modulus, and in that it is obtained in a thickness from 1 to 5 millimeters. The layer thus structured tends to flatten naturally on the foot and behaves in the manner of a “double skin” that filters the vibrations and the impacts, and which absorbs the micro displacements while preserving the transmission of the tactile sensations.