These boots will work with any standard NNN binding system. High-tech fabric which is waterproof, windproof, capable of breathing and durable. It moderates your body temperature to keep you dry and comfortable. 100-gram Thinsulate insulation for warmth & a soft padded velour ankle. Improved anatomic footbed, more comfortable heel counter and toe box, quick-dry lining, soft and flexible padded ankle for comfort and keeping the snow out. Composite midsole, waterproof and breathable upper, Gaitor D-ring, NNN touring sole.