Oakley Paracord RX Optical Frame combines a lightweight, durable O Matter frame with adjustable temples and no‑slip Unobtainium contact points for secure, all‑day wear and prescription compatibility. Key attributes: Black | O Matter | Lightweight | Durable | No-slip grip | Adjustable gooseneck nosepads | Wire core temples | Unobtainium earsocks | Metal hinges | Full-rim | Soft round shape | Dimensions & fit: Lens width: 53 mm | 55 mm | Bridge: 17 mm | Temple length: 137 mm | Frame size: M (131 mm) | L (135 mm) | Height: 42 mm | 44 mm | Regular fit | Low bridge fit | Composition & care: O Matter | Unobtainium | Metal (hinges)