If you're searching for rugged winter boots for men, go for Kamik's Nation Plus. Whether you're out shovelling the night after a snowstorm or taking the kids tobogganing, these warm winter boots will keep your feet comfortable and dry. Featuring seam-sealed waterproof construction, and HEAT-MX™ insulation for extra warmth. FEATURES & SPECS Height: 11.25 inches Weight: 3.6 lbs per pair Circumference: 12 3 ⁄ 16 inches (size 9) Comfortable down to -40°F UPPER Seam-sealed waterproof genuine suede upper Leather is from a tannery rated gold for its water, energy, and waste management practices Waterproof gusset tongue Removable HEAT-MX™ sustainable thermal insulation liner Moisture-wicking lining OUTSOLE Waterproof and flexible synthetic rubber shell SNOWTREAD outsole with deep, self-cleaning treads for stability in snowy conditions