FITS LIKE A GLOVE, WORKS LIKE A DOG.These tall, steel-toed boots are designed to withstand water, slippage, chemicals, sweat, odors, and temperatures to 40 below zero.Steel toe boot may be shipped with gray or yellow toe.100% WaterproofHeight: 16Circumference at calf 17″Weight 6lbs per pairComfort rated from temperate to -40F or sub zero conditionsNatural hand-lasted rubber and a four way stretch inner bootieNon-slip and non-marking outsoleAegis antimicrobial odor protection insoleSteel ToeAvailable in sizes 7-18100% satisfaction guaranteedMeets ASTM 1677, F2913-11, and D471 2010 slip and chemical resistance standardsMeets ASTM F2413-11 and F2412-11 steel toe standardsWARNING: Cancer and Reproductive Harm -www.P65Warnings.ca.gov