Features:1. Soft silicone material- Ultra comfortable, very soft on the ears and nicely keep glasses on during sports or rough boy play. It is flexible enough for you to slide glasses off your eyes while reading/doing close up stuff.2. Fits sunglasses, optical frame, reading glasses; Will not easily fall off and are comfortable for all head sizes and shapes. Perfect for fishing, biking, hiking, skiing, rock climbing; ideal for outdoor sports or normal every day use.3. It is precisely cut without any excess strap dangling down your back, short enough to securely wrap around your head and long enough to take glasses off your face and hang them around the neck when not in use.4. Recommend for anybody who wants to keep glasses right on and stay put safely and gracefully.securely retain on head, neck. 5.stylish logo and look.