No job is too tough for Muck Boots(R) Men's Chore Hi work boots. Built with reliable waterproof protection, exceptional durability and no-slip grip, these do-anything rubber boots empower you to tackle any job.100% Waterproof. Easy to clean rubber overlays. Steel Shank. Stretch-fit topline binding snugs calf to keep warmth in and cold out. 5mm NEOPRENE bootie with four-way stretch nylon. Durable, lightweight rubber outsole. Shaft Circumference: 17in.