Men's Avenue Winter Duck Boot in Brown & Black by SperryMaterials: Durable stain and water resistant full grain leather uppers feature a taslan lace Seam sealed, waterproof construction keeps feet dry in wet conditions Comfort: Fully lined shaft and footbed surrounds the foot in warmth Injected foam EVA shell provides protection from the elements Traction: Patented Razor Cut Wave Siping on non marking rubber outsoles wont scuff floors but gives you sure footing, from boat deck to back deck