Bont Vaypor S LI2 Carbon Composite BOA Cycling Shoes White LI2 Size:43 Double Wide for both road and off road Fork Advanced grade Composite for both road and off road cycling and for tubeless Experience the difference of a professional grade formula that is powerful enough to help remove embedded grease and grime to prevent component wear Over pronation is one of the main contributors to incorrect tracking of knees during a cyclists pedaling phase due to internal rotation of tibia and femur The base of the Vaypor S is made by hand utilizing uni directional carbon fiber which is embedded with epoxy thermo setting resin