The castelli ultra shoe cover has been designed with the sole purpose of keeping your toes both warm and comfortable the overshoe has been designed with windproof properties and uses a windstopper x fast 2 microfleece fabric to give you the best protection possible from the cold elements and light rain thanks to its water resistance ensuring your feet are kept nice and warm in the winter months these castelli overshoes also use anatomic panelling which gives a precise fit while the high cuff a