These sport sandals from Columbia are comfortable adaptible and ready for any terrain. Lightweight and comfortable synthetic nubuck upper in a cage style with a quick release instep buckle and adjustable slinglike ankle strap with Velcro; closure. Rear strap can remove completely and be reattached at the instep to form a slide sandal. Lycra/neoprene lining for comfort all weather Titanium cushioned comfort footbed. All terrain traction wraparound Vibram; outsole.