Only the Cooper Sunglasses and Cooper ScreenSavers are recommended for use with prescription lenses. This style frame is made out of Italian acetate (which your optometrist will recognize as a popular material for prescription glasses).
Otherwise, our MagLock frame styles are made of Gnarlon which is hyper flexible (and so we use a durable yet flexible TAC lens). Your Rx lenses, however, are a more rigid material and could twist right out of place! This is why it's not something we recommend for the majority of our frames.