Extremely durable safety boots for those who need to perform at their best in extreme environments.; The boot is cold and heat insulating, waterproof and breathable, so you never have to let the weather stop you.; Flame-retardant upper protects your feet from flames and sparks.; Slip resistant and heat resistant (up to 300°C contact heat) outsole with ladder grip ensures you have a good footing whether you're standing on a slippery surface or on a ladder.