( PLEASE NOTE- These run small- size up) Wind-and waterproof bike bootie with brushed inside that protects your feet in very cold and wet conditions. 3mm neoprene with pu-coating on top and brushed backside for best protection and warmth. All seams are covered with waterproof tape on the inside. Velcro adjuster at top. Reflective prints for extra safety. * These booties run small. We suggest that you size up. All seams are covered with waterproof tape on the inside Wind- and waterproof fabric with brushed inside to protect against cold and wet. 3mm neoprene with pu-coating on top and brushed backside for best protection and warmth Reflective prints for extra safety Velcro adjuster at top Fabric: Upper: 70% Polyurethane, 20% Polyester, 10% Elastane Mid: 100% Neoprene Back: 100% Polyester *As a Swedish brand our products can fit long and lean. Sorry, but some say it is what makes us fast! So, if your normal fit is typically between sizes we suggest sizing up. Have any questions? Send us an email at info@craftsports.us from Monday-Friday 9am – 5pm EST.