These designer prescription glasses are made to accommodate most prescription lenses.TITANflex 823007 frames have a rectangle shape, which helps to balance rounded 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 823007 frames feature a fashionable rimless frame design. This is the lightest design. It reveals most of the face compared to a full or half rim design. It is frequently used by newscasters and Hollywood actors.Designed for adults, this model has a Regular type hinge for greater comfort. TITANflex Glasses TITANflex glasses are made by Eschenbach Optik, a market leader in German eyewear, and founded in 1913. Eschenbach Optik invented TITANflex® glasses in 1988 – and has since reinforced the unique combination of perfect wearing comfort and absolute design freedom. The TITANflex® brand is synonymous with superior memory metal technology and high quality materials. All glasses are super flexible at the bridge and temple, ultra-lightweight and less breakable than traditional frames.