Neotane material: proprietary polyurethane formulation: light, flexible, long lasting, Wide fitting:, Safety: steel toe cap and midsole S5, Excellent grip, Increased slip resistance: SRC approved, Resistant to fats, manure and a variety of chemicals, Kick-off spur, Cushioning effect in heel, Thermal insulation - 30?c, Standard EN ISO 20345:2011 S5.SRC.CI