The Fieldblazer Classic Boot delivers traditional MuckA(R) sure-dry performance and warmth in nasty field conditions. It's all about MuckA(R)'s exclusive, self-insulating, waterproof neoprene shell construction. The neoprene acts as a neutral medium between inside and outside temperatures, and can easily produce the same insulated warmth as standard lofted insulation. Natural rubber overlays act as a protective skin for the Neoprene bootie. The rubber will stay flexible for yearsA -and thus, so will the Boots. 100% waterproof 5mm CR flex-foam neoprene bootie with rubber overlay Durable quick-cleaning rubber outsole Breathable air mesh lining keeps it cool inside Toe and heel reinforcements for added durability Rear pull-on loop Order today!