Rugged Hard Shell Optics CaseFits safety glasses and wider framed sunglasses Carabiner loop allows you to clip anywhere Features a sewn in 2. 5'' x 12'' micro fiber, non scratch lens cleaning cloth If you wear glasses of any kind prescription, drugstore readers, safety, or sun, you want to protect your fragile and expensive glasses from drops and scratches. Also, chances are that every now and then, you lose track of where you put them. We designed our Rugged Hard Shell Optics