This is a warm, stable and solid mountain ski boot with integrated gaiter. Svalbard is designed for use in cold conditions. The integrated gaiter is made from an extra strong Cordura material with taped seams, and the boots have a Gore-Tex membrane tHats keeps your feet warm and dry regardless of the weather. The boots on the inside of the gaiter are made of leather, and will mold to your foot as it is worn. The boots fit with the binding system for Rottefella BC. They fit BC Manual, auto and Magnum bindings. The boots have a full-covering rubber lining for increased protection and durability.