Material: TPU/Feature:Breathable /Shoe width: Medium Road Cycling Riding Shoes - 20 Straps- Compatible with SPD-SL Compatible Peloton Bike Indoor Road Racing Bikes. Handy magic bandage and adjustable buckle-- Cycling Shoes with Buckle which is suitable for different height and shape of insteps. U-Heel cup thickened protection-- The thickening heel cup has a curved inside structure,which is anatomically shaped around the heel and ankle to avoid twisting your ankles providing better support and stability. MAXIMUM COMPATIBILITY:Santic cycling shoes makes the Santic perfect for indoor cycling , as well as road biking and touring, giving you the most versatility of your lifestyle.