SnowStoppers Childrens Snow Boot with Extra Long Sleeve All Man-Made Materials (Nylon, Lycra, TPR Rubber, Synthetic Leather) Extra-long, Patent Pending, waterproof sleeve keeps the snow out! Temperature rated to -40F! Removable, machine-washable liner for washing and drying between uses! Zipper makes it easy for kids and parents to take on and off! Bright colors match SnowStoppers mittens and gloves! Sizes 7/8 and 9/10 are Toddler Sizes. Sizes 11/12,13, 1,2,3, 4,5 and 6 are Kids Sizes. These Boots are for children ages 2-10. They run a bit small so it is generally best to order the next size up. They might fit again next year!