Design: Triple-dipped shells for extra tough, extra watertight protection Hand-layered construction adds flex and strength at critical stress points Latex neoprene is ozone resistant, and is softer, lighter, and far more pliable than ordinary rubber Heel pull tab for easy on and off 100% waterproof construction In-Shoe Comfort: Cushioned insoles with arch support help fight fatigue and stress on the legs and back Durability & Traction: Slip-resistant, non-marking outsole for the best traction on wet surfaces Additional Details: Acid chemical resistant Recommend half sizes order up to the next full size