Louis Garneau Thermal Plus Shoe Cover Carbon Lycra WR fabric with a warm wicking Drytex fabric lining is polyurethane coated to be abrasion-proof, wind-proof, and easily stretchable High-frequency neoprene Flex Zone ankle and sealed tape seams are comfortable, rub-free, and waterproof U-shaped puller is easy on, easy off, without the need for a leaky back opening Most major pedal systems are compatible with the Thermal Plus cleat openings and Velcro under-sole fastener Reflective logos and tape seams increase visibility in dangerous winter weather