DON'T LOSE YOUR GLASSES From sunny days on the river to distance hikes at exposed elevations, the Chums Universal Fit 3mm Sunglasses Retainers secure your favorite shades around your neck. Chums' patented molded tips fit most frames on the market, ensuring a non-slip fit during active pursuits. The 3-millimeter nylon rope provides a durable connection in a variety of bright colors. FEATURESFits most frame sizesPatented molded tips3mm nylon rope