Sperry Top-Sider Men's Sport Hydrofoil Open Toe Sandal,Navy,9 M 100% Synthetic Rubber sole Dual density footbed with drainage holes for comfort and flexibility Non-marking rubber outsole with Wave-Siping(R)for superior wet/dry traction New, injected EVA technology combines midsole and upper that wraps around the foot is lightweight and offers lateral stability The first shoe with a dual-traction sole to keep your feet firmly planted on uneven surfaces Non-marking rubber outsole with Wave-Siping&#8482; for superior wet/dry traction