Sorel Toddler Cub Winter Boot (Toddler) 100% Textile and Synthetic Synthetic sole Shaft measures approximately 6" from arch Heel measures approximately 1.5" Durable water and wind resistant PU coated synthetic textile upper Built-in gaiter with barrel lock closure system Fixed elastic instep strap Removable 6mm washable recycled felt InnerBoot 2.5mm bonded felt frost plug