Not easy to slip: these eyeglasses holder strap comes with an advanced anti-slip strap to prevent your eyeglasses from falling off your neck even when tilted, can hold your glasses in loops strongly everywhere you go
Size adjustable: there is a rubber holder on both sides of the eyeglasses cords, they are adjustable in size, fits for most adults or teens, you can adjust its size according to your own needs for more comfortable wearing
Suitable for most glasses: from small to large frames, these eyeglass holder straps can provide universal compatibility fitting optical frames, reading glasses, myopia, sunglasses and more, unisex style eyeglass retainer is good for indoor and outdoor activities
Comfortable to wear: these eyeglass straps are comfortable and soft to wear, not easy to break, bright colors not easy to fade, lightweight and put little burden on your head, good material can accompany you long time