Chums Safety double breakaway cotton safety eyewear retainer. The original cotton retainer with a dual reconnecting breakaway for safety. Quality, comfort and the ability to fit most standard frames and an adjustable slider bead for superb fit. Machine washable. For standard frames. 100 percent comfortable cotton with double breakaway buckle. Bead adjusts for superb fit. Field tested eyewear, sunglass and eyeglass cord. Royal blue color.