Castelli tempesta leg warmerif youre riding without fenders you know that the lower legs get wheel spray from both front and back and are one of the hardest spots to keep dry so we made the lower part of this leg warmer with waterproof reflective fabric so that the spray will just run off features waterproof reflex lower leg provides water protection and visibilitynano flex upper portion for water repellency should spray come upgiro3 leg gripperankle zipper positioned at outside of ankle to