Kamik Waterbug5 Wide Winter Boot  (Toddler/Little Kid/Big Kid) 100% Nylon Imported Synthetic sole Shaft measures approximately 9" from arch Winter boot featuring contrast shaft with adjustable bungee topline and hook-and-loop strap at ankle Waterproof seam-sealed construction Reflective logo patch at back Removable 8mm Zylex liner rated to -40 degrees F