Men’s model features a cushioned neoprene collar and slipper-soft microfiber lining with neutral-toned nubuck uppers. Built with FitFlop’s patent-pending, leg-muscle loading microwobbleboard™ midsole technology, Dass sandals have already been reported to help reduce pain in the knees, ankles and lower back and to help speed recovery from joint injuries. Great for men recovering from or suffering from sports injuries, back pain, or aching legs.