Columbia Rope Tow II Waterproof Winter Boot (Toddler/Little Kid/Big Kid) 100% Suede Leather, Synthetic Nylon Imported Rubber sole Shaft measures approximately 6" from arch Heel measures approximately 1.5" Waterproof, seam sealed upper 200g insulation rated at -25f This waterproof snow boot from Columbia features an easy bungee lacing system and a toasty lining.