The neoprene eyewear retainer has been a favorite of river runners and people on the water for decades. The lock-stitched ends slip over most size eyewear frames. For a tighter fit, slide the retainer further down your frames. Features: industry standard for neoprene retainers. Quick drying and durable. Comfortable, light weight and easily adjustable. Light flotation, floats frames up to 15g. Latex free. 16 inch length. Usable length 12 inches.