Perfect for mud and slush, BOGS Classic Ultra Mid boots feature neoprene uppers and feet bonded to a rubber shell provide the ultimate in warm, waterproof protection. . 100% waterproof and warm comfort rated from 60AdegF to 35AdegF. Nonslip, nonmarking rubber outsole for grip and traction. Waterproof rubber outer shell protects internal neoprene that provides warmth. Aegis antimicrobial insoles prevent odor. Four way stretch neoprene upper for comfort and warmth. Built in handles and rear pull tab for easy entry. Boot height: 10 in.. If you are a half size, Bogs recommends that you move up to the next full size.