These boots are 100% waterproof and 100% MUCKPROOF with a full neoprene bootie. The bootie is wrapped in soft, hand laid rubber designed for comfort and protection. The Originals feature a molded PU footbed with a layer of memory foam, treated with odor control and moisture management, these boots are constructed for maximum underfoot comfort. The collection is built on a rubber outsole with an innovative lug design that provides traction while quickly releasing mud and other debris.