Rockport Women's Eva Stud Tall Shaft Mid-Calf Boot 100% Leather Rubber sole Shaft measures approximately 16.5" from arch Heel measures approximately 2" Boot opening measures approximately 14.5" 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