- Small/Large size-specific for optimal shoe/pedal interface - 12 molded traction pins each side - Reinforced composite body is lightweight, improves deflection and reduces hang-up during rock strikes - Concave platform for secure foothold (13.5-15.5mm thin) - Igus bearings & seal system - Small recommended for size 5-10 (37-43). Large recommended for size 10-15 (43-49) - 5 year warranty