Size men’s 9 or woman’s 10 Unisex Edgewater Clsssic Muck Boots Sz. Men’s 9, Womens 10 Green Rain boot 100% Waterproof Stretch-fit topline binding snugs calf to keep warmth in, cold out 5mm Neoprene bootie with four-way stretch nylon for lightweight comfort and performance Seamless, quick-clean rubber overlay Self-cleaning outsole wraps the entire perimeter to provide maximum protection and stability on steep terrain Estimate Shaft Circumference: 16" Estimated Shaft Height: 15" EE31