These designer prescription glasses are made to accommodate most prescription lenses.Made of titanium, the frame is hypoallergenic and super light and strong. Made of metal, the frame can be easily adjusted for a perfect fit with your prescription lenses. Your frame purchase includes free standard shipping charges, and manufacturer packaging. You can add doctor verified prescription lenses, add custom polarized lenses, and many other lens options if you desire them. Like all Airlock products, the Airlock Airlock 720/25 provides the sophisticated and classic look that we all need. Airlock Glasses Airlock glasses are made by Marchon, one of the world's largest eyewear makers. Airlock glasses are defining the way sport rimless glasses frames are designed. With a unique and new lens positioning system, which uses pressure instead of screws to keep the frames in place, this brand is setting itself up for long term success. Airlock glasses pride itself on a more secure fit, and a lower chance of damage. Airlock glasses can be purchased in a range of colors. Some of their lines include large and gorgeous temples in bold colors. Airlock glasses collection also include frames with edgier shapes and trendier fashion styles. Airlock glasses can all be customized with prescription lenses, just like all of our glasses.