The Arctic Patrol Boots keep your feet dry and warm no matter what nature throws at you. Minus temps are no match for the 400g of PrimaLoft® insulation, combined with a removable felt sock liner and a faux shearling top. Along with the insulation, an aluminum shield below the foot effectively blocks the cold. A waterproof rubber shell, and a coated textile upper with sealed seams will keep moisture out. The boots are protective yet flexible for hours of comfortable wear. The serrated rubber sole features two of our toughest grip technologies to give you excellent traction on slippery surfaces. The Artic winter boots have a 30-40°C/-22/-40°F thermal rating.