Columbia Youth Powderbug Plus Print Winter Boot (Little Kid/Big Kid) 100% Fabric, Synthetic Rubber sole Shaft measures approximately 10.25" from arch Boot opening measures approximately 14.25" around Waterproof winter boot featuring duck bootie and patterned shaft with hook-and-loop ankle strap and adjustable bungee opening Recycled 6mm washable recycled felt liner Insulation rated to -25 F/-32 C