Ankle Deck Boot Sport: Featuring a sportfishing-specific shape and up to 30% lighter than comparable 6 inch boots in this category, this boot has all the features you would expect from an XTRATUF® boot. This Sport's one-piece outsole is composed of a novel, high-performance foam called BIOLITE, which is incredibly resilient and slip-resistant. With the same traction advantages of a full rubber boot, this boot offers the comfort and agility of a sneaker with a long cushion life and great energy return.