From fishing to hunting, Muck has you covered! The Original Muck Boot Company's Wetland 5mm flex foam bootie with 4-way stretch nylon is 100% waterproof, lightweight, flexible, buoyant, and will form to virtually any calf girth. Breathable Airmesh lining; durable rubber outsole with wrap-up toe bumper. Average weight per pair: 4 lbs. 2 oz. Imported. Manufacturer style #: WET998. Flex foam bootie 100% waterproof Breathable Airmesh lining Rubber outsole