Baffin Explorer Snow Boot (Little Kid/Big Kid) 100% Fabric Imported Rubber sole Shaft measures approximately 9" from arch Heel measures approximately 1.5" Platform measures approximately 0.5 inches Boot opening measures approximately 18.5" around Watch out, world! You're about to get conquered. Pro-tech microfiber and rip-stop nylon upper with TPR shell delivers durability. Pull-on style with hook-and-loop strap at instep for added security and bungee lock snow cuff to keep the elements out. Multilayer inner boot system offers comfort and warmth. TPR outsole provides maximum traction on a variety of surfaces. Comfort rating: -60&#176;C/-76&#176;F (This is the actual and correct conversion, not a typo. Crazy, huh?). Measurements: Heel Height: 1 1&frasl;2 in Weight: 1 lb 13 oz Circumference: 18 1&frasl;2 in Shaft: 9 in Platform Height: 1&frasl;2 in Product measurements were taken using size 5 Big Kid, width M. Please note that measurements may vary by size.