If you're 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. You wear this warmer with your favorite shorts, underneath the Tempesta 3/4 pant, and OVER your waterproof booties. You get ventilation under the pant, and because the warmer is placed over the bootie, the rain just runs right off. The large reflective area on your moving legs is highly visible for extra safety, and in our testing this piece has become a favorite for night rides.