Double depth equals maximum adjustability with Drew Element Fisherman Sandals This classic fisherman sandal has a nubuck leather upper with easy-adjust elastic toggle laces. The removable, cushioned Ultron insole provides three depth options: standard, added, and even double depth for those days you need more room than usual, or to accommodate orthotics if needed. The tempered steel shank helps to stabilize your stride. Added comfort comes from the flexible, shock-absorbing rubber. The fit is easy to adjust with a hook-and-loop backstrap. Orthotic-Friendly.