Meet the Unisex Ooahh Sport Flex Sandal by OOFOS, the perfect blend of innovation and comfort in a sleek matte black design. Featuring an adjustable OOfoam™ strap, this sandal provides superior support with its patented footbed design that reduces stress on your joints. Material: Rubber. Enjoy the added benefits of the closed-cell foam, which is machine washable and minimizes odor, while the OOfoam™ technology absorbs 37% more impact for a smoother stride. Ideal for adult men, these sandals promise both style and function with a practical peep toe shape.