Penna MarleneTrippen Marlene sandals are open at the toes and inward sides with a reverse strap running over the instep and featuring a button fastening and asymmetrical lines. Reverse strap with button fastening Anatomically formed insole Open toe Leather footbed Soft and flexible sole Concave design guarantees excellent shock absorption Materials Upper: vegetable tanned leather Lining: leather Outsole: rubber Made in Germany Size Guide Fits true to size. We