The Pearl Izumi Men's Pro RD II Road Cycling Shoes are the most technologically advanced shoe pearl izumi has ever produced. This shoe features a Power plate P.R.O. Grade Uni-directional Carbon stiffness enhanced plate stiffness and anatomical support and built in longitudinal arch support for optimal support and power efficiency. Direct vent technology aides with both cooling and drainage. The anatomical buckle closure follows the natural shape of the foot to eliminate hot spots and remove pressure from your instep. The heel cup is made of synthetic leather lining, combined with the internal Achilles grip pads gives you a great fit.