These designer sunglasses cannot take prescription lenses.TITANflex 825028 frames have a oval shape, which helps to balance rectangular facial features. Frame shape is the most noticeable feature of a pair of glasses, followed by frame color and frame size. Top brands always have a large collection of rectangle frame shape glasses, as well as oval frame shape glasses.TITANflex 825028 frames feature a fashionable full frame design, which is the largest component of designer eyeglasses brands collections. A rim all the way around the lenses, provides for maximum stability and durability.The frame has adjustable nosepads, a popular feature providing comfort and precision to any nose shape.Designed for adults, this model has a Regular type hinge for greater comfort.Standard skull temples can be easily adjusted to fit perfectly behind your ears.Material defects or workmanship: 24 month warranty. The warrantee by the manufacturer covers manufacturer's defects for the frame. As an online optical superstore, we can help to process a warrantee for you with the manufacturer, according to their return policy. TITANflex Sunglasses