This round frame has just the right edge. The timeless appeal of the Reprise is a nod to fashion icons past and present.. Cellulose Acetate, is a nylon based plastic that is hypo allergenic, and has more transparency and gloss than any other plastic. Acetate produces some of the most aesthetically pleasing eyewear, which is ideal for custom fitting and pliable when heated. Electric exclusively uses Mazzucchelli acetate for all of our handmade Italian acetate frames.. Electric is proud to offer melanin infused CR-39 lenses. An industry first that we have developed, exclusively with our lens supplier. CR-39 monomer lenses combine the optical clarity of glass with the durability of a thermoset material. CR-39 lenses stand up to scratches, are light weight and are featured in all of our acetate frames.