A skate boot comprising an outer shell with a heel portion for receiving the heel of the foot; an ankle portion for receiving the ankle, the ankle portion comprising a rear portion for facing at least partially the lower part of the Achilles tendon; and medial and lateral side portions for facing the medial and lateral sides of the foot respectively. The skate boot also comprises a tendon guard extending upwardly from the ankle portion of the outer shell for facing at least partially the upper part of the Achilles tendon, the tendon guard comprising a recess for receiving an insert. The tendon guard has a first flexion mode when no insert is received in the recess and a second flexion mode when the insert is received in the recess. The second flexion mode is different from the first flexion mode.

An indicator for a heated article of footwear that includes an outer shell and a removable inner liner is described. The inner liner includes a heating system with an indicator disposed on a forefoot region of the inner liner. The heating system is integrated within the inner liner and is removable with the inner liner from the outer shell. A viewing window is disposed on the outer shell at a location corresponding to the indicator located on the inner liner. With this arrangement, the status condition of the heating system on the inner liner may be communicated to a wearer of the article through the viewing window from within the interior of the article.

A low friction boot insert 1 that is positioned around the lower leg surrounding a sock 2 and on the inside of a boot 4 such as those worn for skiing. Rotational movement 5 and longitudinal movement 6 of the skin 3 relative to the boot surface is minimised by reducing friction at the interface of the insert and boot or the interface of the insert and sock or both. The reduction in friction transferred to the interface between sock and skin helps to reduce the chafing of the skin which can cause blisters or sores.

A method allowing the synchronizing collection of motion and ground reaction forces data at the start of a sporting event which are received from motion and force sensors embedded in insoles worn in the user's footwear. Furthermore, this method allows synchronization of said data with video or television transmission, and if used during, for example, during ski racing, provides information of skis' pitch, roll and heading in a 3-D space, as well as linear and angular velocity, g-forces, and the location and distribution of pressure points and ground reaction forces transferred to the user's feet in a numerical or a graphical form.

A walking boot and a boot frame. The boot frame can be formed to receive the walking boot. The walking boot can be secured within the boot frame via one or more buckles. The walking boot can have an externally mounted tongue that can be tensioned via the use of one or more laces and associated tensioning mechanisms. The tongue can be molded to conform to a user's foot and leg while the tensioning mechanisms secure the user's foot and leg within the walking boot. In some embodiments, the boot frame has an open heel to capture the walking boot. In some other embodiments, the boot frame has a rotatable heel configured to pivot away from the toe and receive a heel of the walking boot for easy coupling of the walking boot to the boot frame.

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.

A skate boot comprising an outer shell with a heel portion for receiving the heel of the foot; an ankle portion for receiving the ankle, the ankle portion comprising a rear portion for facing at least partially the lower part of the Achilles tendon; and medial and lateral side portions for facing the medial and lateral sides of the foot respectively. The skate boot also comprises a component extending upwardly from the ankle portion of the outer shell for facing at least partially the upper part of the Achilles tendon, the component comprising a recess for receiving an insert. The component has a first flexion mode when no insert is received in the recess and a second flexion mode when the insert is received in the recess. The second flexion mode is different from the first flexion mode.

One or more tuning elements may be associated with a receiver, such as a pocket or other channel, disposed on an item of footwear, such as a snowboarding boot. The receiver adjustably receives the tuning element. The adjustable arrangement of the tuning element and receiver allows the intended user of the item of footwear to tune the item for performance, comfort, cosmetic, or other characteristics. In certain embodiments, the tuning elements are removably associated with a boot to allow for flex control.

A system and method to provide haptic and visual feedback of motion of the skier foot and the forces transmitted to the skiboot insole and consequently to the ski/snow interface. This system comprises a motion and force sensors and a haptic actuator embedded in the skiboot insole in communication with a smart-phone based analysis application, configured to calculate insole motion and orientation and the distribution of pressure points inside the skiboot, then to provide haptic feedback to the skier foot instructing on timing and direction of change in the pressure points necessary to achieve optimal turn parameters. Furthermore, analyzed together with GPS coordinates are transmitted by the application to the cloud based server for further processing. Graphical and numerical representation of data is superimposed over a 3D map of a slope which may be viewed on the user smart-phone or on a remote computer terminal.

The soft boot and liner includes moisture transfer system that includes an inner fabric layer carefully selected from technically advanced fabrics. A series of layers are provided outside the inner liner including foam material layers, spacer fabrics and breathable membranes, in various orders. Encapsulation technology and waterproofing are used as well. The outer fabric layer is also capable of working with the other layers to promote the transfer of moisture. Frothed foams and flocking with fibers are further characteristics of the present invention. The moisture transfer system is incorporated into a soft boot or skate or as a removable liner for a shell boot. Numerous other modifications and applications are disclosed.