Made from water-repellent and windproof GORE-TEX INFINIUM WINDSTOPPER, the purposefully built Perfetto Shoecover fends off chilly wind and rain to protect our feet during inclement training rides and races. This shoecover's protective construction also boasts exceptional stretch for a streamlined fit over shoe buckles and other closures. We appreciate that Castelli gave this bootie a tall cut for extra warmth, and finished it off with silicone elastic to keep moisture from entering the top when you're dealing with splashback.