Polycarbonate, silicone, stainless steel Imported Adjustable closure Hand Wash Snag-free Safety Design: The RETRAX automatic retractable eyeglass retainer stays comfortably held to the back of your neck while wearing glasses or letting them hang. With no excess cord or lanyard hanging down your neck which could pull your glasses off or get caught, the RETRAX offers an invaluable safety option for sports or operating machinery. Comfortable Fit: Our non-locking sunglass strap retainer constantly keeps all extra braided material in the mechanism so that it cannot get snagged like a traditional strap. This feather-light device weighs only 0.2 oz providing a comfortable fit. No matter where you are or what you're doing, our sunglasses strap for men and women will keep your glasses and sunglasses right where they need to be. On your head. Glasses Stay in Place: When removing your eyewear temporarily, the Retrax eyeglass holder strap keeps your glasses tucked safely under your chin rather than letting them hang like a regular lanyard. Keeping the glasses holder strap retracted so that your eyewear stays just under your chin adds safety to any task. Unlimited Uses: Eyewear that is constantly held in place by eyeglass straps won't get blown off your head in high wind. Even if you're sweating, your eyeglasses, sunglasses, or safety glasses will remain in place instead of sliding down your nose. This makes it convenient for fishing, mechanics, surgeons, bike riders and anywhere else. High Quality Manufacturing: As the first and only patented retractable lanyard, the RETRAX retractable glasses strap for women and men is built to be extremely durable and waterproof. The silicone retainers, corrosion free polycarbonate body, and flexible, soft polymer coated braided stainless steel cable all help it stand up to the harshest saltwater fishing or toughest job site. Show more