Chinese Laundry Women's Cat Balou Over the Knee Boots Leather/Denim Shaft measures approximately 20.5 from arch Heel measures approximately .05 inches Boot opening measures approximately 15 around Retro Equestrian style over the knee high boot. Leather and denim upper. Leather sole 14-16" circumference around leg opening. 20 1/2" boot shaft height from heel to top.