One of the warmest overboots available! Overboots offer a far better solution for cold feet than wearing heavy or extra socks, and have allowed some skiers with chronically cold feet to enjoy skiing again. Windproof, Lycra shell, rubber-coated fiberglass bottom. For Profil and NNN soles and is easily modified to fit Pilot boots/bindings. Euro Sizes: XS (36-37)-XXL (46-47).