Description What better way to navigate the winter months than with a pair of Black/Grey BILLY Ice Winter Boots! The insulated boots are rated to -40 so are sure to keep the feet warm. Touting a short wrap zipper configuration, the boot bootie remains waterproof while the nylon boot shaft remains water resistant. Enjoy! Coming in a M-width (Kid/Tod medium), the sizes start at a 5 US Toddler and go to a 9 US Big Kid. Available in whole sizes only. Upper: NylonInner: Insulated fabricOutsole: RubberLaces: Adjustable. Cotton-blend.Removeable inserts. Imported.