The 100% waterproof Muck 16"H Steel Toe Chore Boot features a sturdy, oil-resistant, blown rubber outsole that remains flexible in any condition. Boot also features a thick lug outsole with a defined heel for even greater durability and removable cushioned insole. Black. Men's whole sizes 5-13. NOTE: Muck Boots are unisex. Women's sizes run one size smaller than Men's. Example: If you require a Women's size 8, you would order a Men's size 7.