Rockport Women's Helena Stud Ankle Bootie 100% Leather Synthetic sole Shaft measures approximately 6" from arch Heel measures approximately 3.25" Boot opening measures approximately 10" around Full Grain Leather: Durable and easy to clearn Extending product life Rubber outsole provides a durable grip on a variety of surfaces Adidas adiprene footbed - a highly shock absorbent heel cushioning to absorb impact. Resilient and flexible forefoot cushioning provides a responsive dynamic push-off. Nylon zipper for easy entry and exit