The BOGS Ultra High 15" boot was originally designed to help dairy farmers stay dry, safe and comfortable on slippery indoor and outdoor cement surfaces. Easy-on pull handles, durable hand-lasted rubber over 7mm waterproof Neo-Tech™ insulation. An internal midsole with rubber sponge for extra cushioning and warmth. DuraFresh odor protection insole. Comfort-rated to -40°F.Features 100% Waterproof Height: 15” Circumference at calf 17" Average weight 6.08 lbs per pair Comfort rated from temperate to -40°F Durable hand-lasted rubber and a four way stretch inner bootie Constructed with 7mm waterproof Neo-Tech™ Easy-on pull handles Internal midsole with rubber sponge delivers extra cushion and warmth Non-slip and non-marking outsole DuraFresh bio-technology that activates to fight unwanted odors Available in sizes 4-16 100% satisfaction guaranteed