SPERRY TOPSIDER. STS18433. AVENUE DUCK BOOT. BROWN BLACK.Take on your daily outdoor adventure in the men s Sperry Avenue Duck Boot. This Duck Boot is seam-sealed with waterproof technology keeping your feet warm and dry all day long. The shaft of the Avenue Duck Boot is fully lined with thermal insulation adding ultimate warmth and comfort. The outsole of this men s Sperry Boot is constructed with non-marking lugged rubber with Wave-Siping technology which allows for ensure traction protection and slip-resistance.