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.

In one example, a ski boot includes a plastic shell, a boot liner partly received within the plastic shell, and the boot liner including a tongue having an upper edge, and a dynamic support strap. The dynamic support strap includes a band connected to the plastic shell, and a restraint element connected to the band, the restraint element including a wall and a lip that together define an undercut area behind the wall, and the undercut area is configured and arranged to receive a portion of the upper edge of the tongue when the restraint element is operably positioned with respect to the tongue.

A method for providing feedback to a skier includes: receiving, by a feedback computer, sensor data from a plurality of sensors located in a ski boot of the skier, the sensor data representing a movement of the skier during a ski run; receiving, by the feedback computer, video data representing a video recording of the skier during the ski run; after the ski run, synchronizing, by the feedback computer, the sensor data and the video data; and simultaneously displaying, on a display screen in electrical communication with the feedback computer, the video recording and the sensor data.

In one example, a ski boot dynamic support strap includes a band configured to be connected to a ski boot, and a restraint element configured to be connected to the band. The restraint element includes a wall having an upper edge, and a lip that is connected to the upper edge of the wall and extends away from the wall. The lip and the wall collectively form an engagement portion that includes an undercut area, and the engagement portion is sized and configured to accommodate a portion of an upper edge of a tongue of a ski boot liner in the undercut area.

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.

A combination of a ski boot and a strap is provided. The strap extends from an attachment point on the lateral side of a hard outer shell of the boot and in use is tightened to hold the inner boot liner in relatively fixed proximity to the lateral side of the outer boot shell during skiing. The strap can extend around the inner boot liner, or be at least partially incorporated as a part of the inner boot liner. In either case, the strap is adjustable between the tightened position, and an open position.

In one example, a ski boot dynamic support strap includes a band configured to be connected to a ski boot, and a restraint element configured to be connected to the band. The restraint element includes a wall having an upper edge, and a lip that is connected to the upper edge of the wall and extends away from the wall. The lip and the wall collectively form an engagement portion that includes an undercut area, and the engagement portion is sized and configured to accommodate a portion of an upper edge of a tongue of a ski boot liner in the undercut area.

A sport-boot pressure monitoring system and method of use. The system includes a left boot sensor having a left flexible fluid-containing bladder shaped to fit between a user's left leg and an interior surface of a left boot worn by the user and a left pressure sense element in pressure-sensing communication with the left flexible fluid-containing bladder, a right boot sensor that is similar to the left one, and a controller to provide a pressure alert if pressure between one of the user's legs and the interior surface of the boot worn on that leg violates a predetermined pressure threshold and to provide a proximity alert if a distance between the left and right boots violates a predetermined proximity threshold.

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.

A method for providing feedback to a skier, comprising: receiving, by a feedback computer, sensor data from a plurality of sensors associated with the skier, the sensor data representing a movement of the skier during a ski run; receiving, by the feedback computer, video data representing a video recording of the skier during the ski run; after the ski run, synchronizing, by the feedback computer, the sensor data and the video data; and simultaneously displaying, on a display screen in electrical communication with the feedback computer, the video recording and the sensor data.