Columbia Youth Loveland Omni-Heat-K Snow Boot 100% Leather/Textile Imported Rubber sole Shaft measures approximately 11" from arch Boot opening measures approximately 13.5" around Omni-grip non-marking traction rubber Waterproof woven synthetic textile upper and lining Omni-tech waterproof breathable seam-sealed membrane bootie construction 200g insulation Omni-heat reflective lining