FRAME FEATURES: OX8060 Overhead eyeglass frames is a three-piece injected frame, made with durable and lightweight O-Matter. They feature a rectangular, dark matte silver/blue colorshift frame with Ace-fit adjustable temples. PRESCRIPTION READY EYEGLASS FRAMES: Oakley eyeglass frames feature lenses that need to be replaced with prescription lenses so you can enjoy clear vision. STORAGE CASE INCLUDED: Packaged in hard case to store and protect your Oakley eyewear. CASE AND CLEANING CLOTH INCLUDED: Packaged in a hard case with a cleaning cloth to clean and store your Oakley eyewear. O MATTER STRESS-RESISTANT FRAME: Oakley's stress-resistant frame is lightweight & durable for all-day comfort & protection. The injection molded thermoplastic O-Matter frame provides improved strength & flexibility over traditional acetate & is built to withstand shifting or deforming over time. THREE POINT FIT: Comfort and performance that holds lenses in precise optical alignment. Contact only happens at the bridge of the nose and behind the temples.