As daily eyeglasses, these full-rim eyeglasses are made of high quality TR90, offering pure sophistication with incomparable durability and lightweight comfort. The contrast color on the temple arms make it more fashion-forward. What's more importantly, as sports eyeglasses, our fashionable eyeglasses string holder will keep your glasses lanyard in place everywhere you go. The upgraded clip of this eyeglasses strap allows you to hold your glasses in loops strongly. Adjustable toggles inserted on the temple arms ensure the straps length and are comfortable for all head sizes and shapes. The magnet on the tips of the temple arms can keep your glasses secure around your neck, or rest on top of your head. Ideal for playing basketball, playing soccer, running, fishing, hiking, rock climbing, or just enjoying the great outdoors.