Dunlop Purofort Thermo+ Full Safety Outstanding Thermal Insulation! Resistant to temperatures down to -40�c Durable wellington boot with steel toe cap & midsole protection Antistatic & energy absorbing heel Waterproof polymer upper with insulation superb slip resistance meeting SRC slip resistance standards Resistant to minerals, vegetable oils & fats, blood, manure Resistant to disinfectant & various chemicals. S5-CI-SRC Safety Rating