El Naturalista Women's Ne29 Yggdrasil Ankle Bootie 100% Synthetic Imported Rubber sole Shaft measures approximately 4.75" from arch Heel measures approximately 1.75" Platform measures approximately 0.75 inches Boot opening measures approximately 9.75" around Handmade and designed in spain Vegan Anatomically designed cushioned footbed with arch support Removable insole made from recycled pu Rubber gives our soles flexibility and durability and they are slip resistant and biodegradable