These Muck Chore All Conditions 16in. Work Boots keep your feet warm, dry and supported during long work days in muddy conditions. Black uppers are made with easy-to-clean rubber. Lower boots are made with CR flex foam with 4-way stretch nylon, forming tough booties that insulate feet from the cold, are 100% waterproof and very flexible, fitting comfortably around your feet. Airmesh lined EVA insoles provide comfort and breathability. Provide comfort range of 85°F to sub-freezing. Rubber overlays on boot feet make for easy cleaning. Stretch fit topline bindings create a snug fit around calves, sealing in warmth. Boots have Achilles reinforcement for long wear and added protection. Steel shanks for arch support and stability. Blown rubber outsoles are light, long wearing and shock absorbing. Wide cut heels for stability. Triple-reinforced toes and quadruple-reinforced heels. Diamond-textured toe and heel overlays resist scuffs and scratches. Rear pull-on and kick-off tabs. Roll-down tops for versatility. Whole sizes: 814.