Pearl iZUMi Women's TRI Fly III Cycling Shoe 100% Synthetic leather and mesh Synthetic sole SELECT 1:1 Power Plate features SELECT Grade Nylon and Composite fiber plate for light stiffness and durability 1:1 Anatomic TRI Closure eliminates hot spots and removes pressure from your instep (Patent Pending) SELECT Insole provides a choice of neutral or 1.5mm varus forefoot cant (Patent Pending)