Pearl iZUMi Men's P.R.O. MTB II Cycling Shoe 100% Synthetic leather Synthetic sole P.R.O. MTB 1:1 Power Plate: P.R.O. Grade Uni-Directional Carbon for ultra-light weight stiffness 1:1 Anatomic Buckle Closure: closure follows the natural anatomic shape of the foot to eliminate hot spots and remove pressure from your instep P.R.O 1:1 Heel Cup: with synthetic leather lining and external Carbon Power Band for maximum heel hold and power transfer Pearl Izumi one piece upper with laser technology provides a second skin fit, minimum weight and maximum comfort Molded TPU Toe Cap and high traction Rubthane lug tips deliver off-road durability and traction