Oakley Holbrook Rx is a prescription-ready eyewear model that pairs a lightweight, durable O Matter frame with a classic square silhouette. It’s designed for everyday use and easy prescription lens replacement. Key attributes: Polished transparent sepia | O Matter | Lightweight and durable frame | Three-Point Fit for precise lens alignment | Compatible with Oakley prescription lenses | 4-base lens design for a wide prescription range | Demo lenses for prescription replacement | Molded nosepads | Includes protective carrying case | Square frame | Classic Holbrook silhouette | Polished transparent sepia finish | Dimensions & fit: Size 54 — Lens 54 mm, Bridge 18 mm, Temple 137 mm, Height 42.0 mm | Size 56 — Lens 56 mm, Bridge 18 mm, Temple 137 mm, Height 43.0 mm | Available in two sizes: 54 and 56. | AceFit temples for an adjustable, personalized fit. | Composition & care: O Matter | Wipe lenses with a microfiber cloth and mild lens cleaner; store in the protective case when not in use; avoid abrasive cleaners and high heat.