Triple-dipped Shells for Extra Tough, Extra Watertight Protection100% WaterproofViral Penetration Resistant per ASTM F1671 / F1671M - 13Hand-layered construction adds flex and strength at critical stress pointsSlip-resistant non-marking outsoleRecommended temperature rating to -1°FOpen Cell Foam footbed insoles provide comfortVendor Style Number: 22274G