Designed for use in the construction industry. Oil resistant sole, energy absorbing heel and cold insulated lining. Resistant against minerals, animal and vegetable oils and fats, manure, blood, disinfectants, solvents and various chemicals. Orange upper and blue sole with premium PU insole. Steel toe cap and midsole. S5 classified. The boots are Purofort, which is up to three times more durable than regular PVC or rubber boots and beats any regular polyurethane boot in the area of comfort, protection and durability.