Neotane material, proprietary polyurethane formulation: light, flexible, long lasting, Safety: steel toe cap and midsole S5, Standard fitting, Strong grip, Increased slip resistance: SRC, 100% waterproof, Shock absorbing heel, Resistant to fats, manure and a variety of chemicalsl, Thermal insulation - 50?c, Standard EN ISO 20345:2011 S5.SRC.CI