The Fieldblazer from Muck Boot is the finest sport and field boot in its class. Waterproof, durable, with all of the modern comforts to keep you moving. This tall sport boot is a must for your next outdoor adventure. 100% Waterproof 5mm CR Flex-Foam neoprene liner is 100% waterproof with exceptional comfort, flexibility, shock absorption and heat retention properties; adjusts to the contours of your foot to resist blisters and chafing Breathable mesh lining wicks away humidity and perspiration, allowing air to travel throughout the boot Stretch-fit comfort topline binding snugs calf to keep warmth in and cold & debris out Extended rubber coverage for added protection Quadruple heel, triple toe and double instep rubber add protection and durability Hi-Vis roll down upper for comfort and safety Men's Muck Boot Fieldblazer Classic