Features:- 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 every day use. One year warranty directly with manufacturer.