* Waterproof. * Soft and lightweight. * 21'' to 32'' stretchable length. * Fits most adult men or women eyewear frames. * One year warranty directly with manufacturer. The Zol Bungee sunglass strap is soft, lightweight, and waterproof accessory that fits most adult eyewear frames. Has a 21''to 32'' stretchable length and makes a great accessory for: water sports, hunting, shooting, driving, hiking, cycling, running, fishing, boating, and everyday use. One year warranty directly with manufacturer.