Dunlop Purofort Thermo Plus To -50C Full Safety Wellington Boot - C662343 The Purofort Thermo+ is the ideal boot for use in cold environments. Safe thanks to its steel-tipped toe and suitable for conditions down to -50C, the Thermo+ protects workers against cold conditions. The heat-retaining sole ensures that workers stay comfortable, and the shock-absorbing technology and flexible upper sole offer freedom of movement. Steel toe cap Midsole protection Energy absorbing sole Antistatic 100% Waterproof Oil Resistant outsole Slip resistant Cold insulating Resistance: minerals, animal and plant oils and fats, disinfectants, fertilizer, solvents, various chemicals. Standard: EN ISO 20345:2011.S5.CI.SRC Purofort boots are up to 35% lighter than pvc, rubber or competitive PU boots. Dunlop Purofort boots are made of a material with millions of tiny air pockets. Funny enough, these air pockets are not influencing the strength but they do reduce the weight considerably! No more tired feet! Two important aspects give Dunlop boots their perfect fit. The Purofort material is thinner than rubber, so it is more supple. Secondly, Dunlop has over 100 years of experience designing lasts for boots. That is why they fit perfectly around your feet and ankles. Purofort is extremely flexible, giving you maximum comfort. Thermally Insulating Purofort prevents heat loss and provides thermal insulation down to -20 oC and even to -50 oC. It works just like a thermos flask. The air bubbles in the Purofort material keep the cold and the heat out, so your feet have a constant temperature. Traditional rubber on the other hand is a solid material. Rubber transports cold and heat right through your boot, making your feet cold or sweaty. No more cold feet!