Tyrolia AM 12 GW Color:Matte Black Junior LastBoot shell addresses common Mittens Junior LastBoot shell addresses common problem fit areas for a comfortable fitFocus on ComfortComfort fit liners feature soft materials for all day cushioning and warmthDurable Aluminum Buckles100% Aluminum buckles provide long wearing durability and ease of operationGripWalk® Compatible (Sold Separately)GripWalk® soles feature a rubber tread and rockered toe for a more natural walking motion and increased traction Hinge connector The TYROLIA safety features such as Full Diagonal release mechanism The binding can be used with adult alpine ski boots (ISO 5355 TYPE A) and GripWalk ski boots (within ISO 23223 TYPE A)