No one enjoys cold feet. Guard against extreme cold in these rugged, insulated work boots. Built for impact resistance, these 10-inch boots offer composite heel, ankle and toe reinforcements. Add a waterproof-breathable upper plus resilient cushioning and you've got warm dry feet and all-day comfort. Oil-tanned and polyurethane-coated leathers; Lace closure 1,000 LiteFire® insulation keeps feet warm Storm Defender® waterproof breathable membrane keeps feet dry, but lets them breathe Composite toe protects against impact and compression hazards and meets ASTM 2413-18 standards TPU heel guard with Achilles flex joint for ankle stability and side impact protection Foam-cushioned insole with TPU arch support; Removable EVA insole for a custom fit Cement-constructed rubber outsole for lightweight comfort Secondary protection against incidental contact with electrical circuits of 18,000 volts or less under dry conditions; Meets ASTM 2413-18 EH standards Vendor Product Number: CMC1259 Carhartt Men's Yukon Pac Waterproof Insulated 10" Composite Toe Pac Boot