Bogs Summit Waterproof Boot (Toddler/Little Kid/Big Kid), , 9 M US Toddler 100% Neoprene Imported Rubber sole Shaft measures approximately 9.5" from arch Heel measures approximately 0.75" Boot opening measures approximately 11.5" around 100% Waterproof, machine washable upper Dual-density, contoured EVA footbed Bogs Max-Wick Bogs Neo-Tech insulation Rubber outsole