Breathable Mesh Liner Front and Rear Pull-On Tabs SRC Rated Slip-Resistant Outsole Non-marking outsole 100% Waterproof The XTRATUF Sport Ankle Deck Boot delivers on a lighter boot (up to 30-percent lighter) than other 6-inch rubber boots in this category. The men's Sport is constructed with a high-performance foam which is ultra-durable. The one-piece outsole is SRC slip-resisting and non-marking. This waterproof boot delivers the comfort and agility of a sneaker with long cushion life and high energy return, all while offering the same traction benefits of a full rubber boot.