Sperry Top-Sider Halyard CVO Sneakers NWOB Green Product Details These canvas uppers are paired with a full-length memory foam footbed that will make you want to keep them for the long haul. Materials: Full-length memory foam insoles provide comfort and arch support. Comfort: Vulcanized construction for a strong bond between upper and outsole. Hidden gore system for easy on, easy off versatility. Traction: Wave-Siping™ on non-marking rubber outsoles won’t scuff floors but gives you sure footing, from boat deck to back deck. Materials Material Upper: Canvas Sole: Non-marking rubber outsole with molded Wave-Siping™ technology for enhanced traction Features Vulcanized Sneaker Round Toe Flat Heel Hidden gore system for easy on, easy off versatility Full-length memory foam insoles