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. Details- -Industry standard for neoprene retainers -Quick drying and durable -Comfortable, lightweight and easily adjustable -Light flotation, floats frames up to 15 g -Latex free -Customization available -Length: 16" -Weight without packaging: 0.2 oz