Merrell Snow Quest Lite Waterproof Snow Boot (Little Kid/Big Kid) 100% Textile and Synthetic Imported Synthetic sole Shaft measures approximately 9" from arch IMEVA shell with 360 degree flex for a lightweight, comfortable fit Temperature rated to -40 degrees to ensure a warm wearing experience Hook and loop closure for a secure fit Removable liner for easy drying with thermolite insulation for ultra warmth M-select dry waterproof nylon and EVA shell upper to keep feet dry