The Prescription Sunglasses 151589-c are high quality rectangle frames. These frames are formed of lightweight TR-100 material, which makes them easy to wear all day long, and adjustable nose pads ensure a comfortable custom fit. These frames showcase stylish rectangle lenses in a captivating full rim design that has a stylized brow and subtle designed temples. A sophisticated black or blue finish takes this look to new heights. These frames are compatible with a wide range of lenses. If you buy these glasses at the best price, you can be assured of a great customer experience.