Waterproof over the sock boot can easily be rolled down to keep cooler when temperature rises. Comfort rated from 20 to 60°F. Made from proven ZXT rubber with removable EVA polyurethane footbed. ZXT rubber is ozone, abrasion and tear resistant with added tensile strength. Multilayer rubber on toe and heel plus a double layer, ribbed vamp for durability and support. Features 5mm neoprene insulation, fiberglass shank and versatile outsole built to shed mud. Quick drying, moisture wicking jersey knit liner keeps feet dry. Durable neoprene gusset accommodates different calf sizes and makes it easier to slide boot on and off. Active fit to keep foot secure and comfortable while on the move. 14 height. Black. Men is sizes.