LOW DRAG WATER PROTECTION Geared right for cool, wet rides, the BlazeShoe Covers are designed to help reduce aerodynamic drag while providing a barrier against moisture and messy winter road grime. Made from premium PU- coated Lycra with reflective details. Fabric & Construction Water-resistant PU-coated Lycra upper, Reflective offset zipper, Reinforced cleat zone, Reinforced toe and heel zones, Locking zipper, Temperature Rating: 45 degree to 65 degreeF / 7 degreeto 18 degreeC - 5% Poyurethan, 15% Nylon, 70% Spandex, 10% mesh duopolyester