This Costa Del Mar C-Line Sunglasses Retainer is the perfect accessory for any fishing or outdoor enthusiast. Made with durable nylon material, it is designed to hold any universal ammunition type and comes in a sleek black color. The holder/lanyard style and one-size-fits-all design make it easy to wear and convenient for any activity. In accordance with California Prop 65, this sunglasses retainer does not contain any harmful substances. It is a genuine Costa Del Mar product, made in the United States with high-quality materials. Whether you're wearing them for a day out on the water or just for a stylish accessory, these sunglasses retainers are a must-have for any collection.