Pearl Izumi Men's All-Road III Cycling Shoe 58% Synthetic Leather/42% Nylon Mesh Imported Synthetic sole 1:1 anatomic closure: follows the natural anatomic shape of the foot to eliminate hot spots and remove pressure from your instep Select 1:1 power plate: select grade nylon and composite fiber plate for lightweight stiffness and durability Concave shaping for enhanced plate stiffness and anatomic support. Low-profile bottom for an indoor/outdoor look and feel Select insole: provides excellent longitudinal and transverse arch support. Spd-Compatible