Rockport Women's Alika Buckled Bootie Leather Rubber sole Shaft measures approximately 8" from arch Heel measures approximately 1.5" Boot opening measures approximately 10.5" around Breathable polyurethane cushioning for moisture absorbency and odor resistance Adidas adiprene provides high shock absorbency to protect the heel at impact Adidas adiprene+ resilient and flexible forefoot cushioning provides a dynamic pushoff