You made an investment in your Dive Shade Sunglasses and don't want to lean over the side of the boat and have them slid off your nose. Plop as they disappear beneath the seas. Secure your sunglasses with Dive Shades Sunglass Retainer withDive Shades/Dive Flag Logo's. Easy to install and will keep your sunglasses safe and handy. Made from soft black neoprene rubber just slip the ends of your sunglasses into the stretchy neoprene rubber for a secure fit.