All Flexon reading glasses come with a slim case that you can carry wherever you may go. Bend these frames all you want and they will always return to their original shape! They feature technologically advanced memory metal in the bridge & temples that allow them to be flexed, bent or twisted & then they return to their original shape. They are durable & lightweight allowing you to embrace every challenge without disappointment. With years of design & construction experience, Flexon has evolved into a collection with no limitations. Memory metal combined with rubber, TR90 & stainless steel create a varied collection filled with advanced durability, lightweight construction & a comfortable fit.