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.