Blundstone 565 Pull-On Chelsea Boot (Infant/Toddler/Little Kid/Big Kid) 100% Leather Imported Synthetic sole Shaft measures approximately 4.25" from arch Heel measures approximately 1" Platform measures approximately 0.5" Boot opening measures approximately 7" around Steel shank ensures correct step flex point, assists with torsional stability Rustic brown leather elastic side boot Full length removable comfort footbed and an additional footbed supplied to extend size range Polyurethane sole resistant to 284 degrees Fahrenheit Oil, acid and organic fat resistant ergonomically engineered toe spring for reduced wearer fatigue