These designer prescription glasses are made to accommodate most prescription lenses.Made of Nylon.Polo PH2237U 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. See all Polo Polo Glasses Polo glasses frames representing their men’s glasses collection exhibit a selection of sophisticated eyewear frames that exemplify the classic Ivy League “preppy look” with a twist of elegant English haberdashery that Polo Ralph Lauren is known for. The Ralph Lauren glasses brands’ attention to design detail extends from their Polo glasses frame shape, the type of hinges and bridge, to the colors and materials of the frames. The Polo Ralph Lauren brand stands behind its Polo glasses with a twenty-four month warranty on all material defects and workmanship.