The invention pertains to a detachable tongue (16) for a slipper, with the said tongue (16) incorporating: one upper part (20) designed to come into contact with a tibial area and an area located opposite the talus of the user's foot; one lower part (21) designed to come into contact with a rear part of the top of the user's foot; and a detachable connection system (17) that connects the said tongue (16) with the slipper (10); and a heating element (25) connected to the said lower part (21), such that the said heating element (25) can extend between a tip of the boot and the user's toes.

Sports boot including: an inner boot; an exogenous shell, the dimensions of which allow the inner boot to be inserted into or extracted from it, the exogenous shell strengthening the inner boot and allowing it to be attached to a piece of sports equipment. The exogenous shell includes a sole, a forward part of an upper able to pivot with respect to the sole about a first articulation, and a rear part of an upper which is able to pivot with respect to the sole about a second articulation. The sole includes a continuous inner relief pattern having longitudinally-extending ribs separated by longitudinally-extending grooves extending continuously along an entire length of the sole. The inner boot includes a sole with a corresponding relief pattern, so as to position laterally and vertically the inner boot in the exogenous shell.

A method of calibration of a system designed for analysis of ground reaction forces of a user's feet, wherein the system comprises a left and right footwear each with a plurality of force sensors. The method includes (a) obtaining respective data measurements from each force sensor over a time period while the user's feet are in the left and right footwear; (b) determining a respective statistic of the respective data measurements for each force sensor over the time period; and (c) storing the respective statistic as a respective calibration offset for a respective force sensor. The respective statistic may comprise a minimum, a maximum, an average, a median, a percentile, and/or a statistical model of the respective data measurements.

A ski boot comprising: a rigid shell which is shaped so as to accommodate the foot of the user, and has a lower part structured to be able to couple to a ski binding device; a rigid cuff which is shaped so as to enclose the lower part of the leg of the user, and is pivotally joined to the shell so as to be able to swing about a rotation axis substantially perpendicular to the midplane of the boot; and a cuff locking device which is located on the cuff and is selectively adapted to rigidly connect the cuff to the shell to prevent the cuff from swinging on the shell; the cuff locking device, in turn, comprising a movable arm which is pivotally joined to the cuff so as to be able to rotate to and from a locking position in which the movable arm extends downwards and arranges its distal end in abutment on an anchorage structure present on said shell, and an elastic assembly which is adapted to bring and elastically retain the movable arm in the locking position, and which basically consists of a telescopic stem that lies substantially on the rotation plane of the movable arm and is interposed between the movable arm and a fixed point on the cuff, and of an elastic opposing member that is fitted on the telescopic stem, and acts on the telescopic stem so as to bring and elastically maintain the telescopic stem in a maximum extension configuration.

A method of assembling a boot is provided. The method comprises forming a first layer of insulation material of the boot covering a toe region, a saddle region, and a heel region of the boot; forming a second layer of insulation material of the boot that covers the saddle region and the toe region and does not cover the heel region of the boot; forming a third layer of insulation material that covers the toe region and does not cover the heel region and the saddle region of the boot; and attaching the first, the second, and the third layers of insulation material to an outsole of the boot.

The waterproof/breathable moisture transfer liner for a running and hiking shoe includes an inner liner selected from technically advanced fabrics which are carefully selected. A series of layers are provided outside the inner liner including foam material layers, breathable membranes, a supportive mesh or a moldable foam, and an outer shell fabric. The applicability of the liner to alpine, snowboard boots, cross country, hiking boots, protective gear and helmets, along with appropriate variations for each application.

There is provided an insole for a sport footwear, the insole comprises: a forefoot portion comprising an incliner for inclining a foot of a wearer towards an outer side of the insole, a midfoot portion having an arch extending from an underside of the insole, and a rearfoot portion comprising an incliner for inclining the foot of the wearer towards the outer side of the insole. Such an insole can be effective for maintaining a linear motion of the knee of the user. Moreover such an insole can be effective for maintaining the foot of the person inclined outwardly. Thus, the body weight of the person can also be shifted outwardly, which improves balance.

An article of footwear with adjustable stiffness is provided. The article of footwear in the form of a snowboard boot is provided with adjustable tensioning systems that are disposed on either side of an inner liner of the snowboard boot. The adjustable tensioning system includes a comb body structure having flex portions made of a plurality of extending fingers with a flexibility that can be controlled by the adjustable tensioning system. Depending on the level of tension applied by the tensioning system, or lack thereof, a range of flex profiles having varying amounts of stiffness are available to the wearer to adjust the overall stiffness of the snowboard boot.

The inventive subject matter shown and described is directed to an item of footwear with a tensioning system, comprising: a shell for enclosing a foot and at least a portion of a lower leg; a pair of opposing edges generally aligned along the top of foot portion of the shell and/or a front lower leg portion, the edges generally aligning with a longitudinal axis of the foot and/or lower leg, the opposing edges defining opposite sides of the shell.

Footwear and a method of manufacture of footwear are presented. The footwear has different insulation zones and each zone has a different level of insulation. For example, an article of footwear includes a first insulation zone, a second insulation zone, and a third insulation zone. The first, second, and third insulation zones each provide a different level of insulation for a specific part of a wearer's foot. The first insulation zone may be the heel region of the article of footwear, the second insulation zone may be the main part of the foot region of the article of footwear excluding both the heel region and a toe region of the article of footwear, and the third insulation zone may be the toe region of the article of footwear.