Secure retain: tight and robust, can hold your glasses securely and you no longer have to worry about the glasses slipping down when sweating or sweating. Perfect for those who wear glasses while running or children with the glasses that play sports. Soft and lightweight ultra-comfortable, very soft on the ears and keep your glasses on during sports or rough boys game. It is flexible enough that you glide glasses off your eyes when reading/taking close-ups Stylish Quick-drying: soft silicone material, quick-drying and prevents the sunglasses from getting lost during sudden waves on the beach. Perfect for the water/amusement parks, the beach or anywhere you are afraid of losing the glasses. Universal fit fits in most glasses to prevent slipping during play and to hold securely on your head or neck. Recommended for anyone who wants to keep glasses and stay safe and graceful. Perfect length it is precisely cut without any excess band dangling over your back, short enough to wrap it securely around your head and long enough to take the glasses out of your face and hang them around your neck when not in use.