Oakley Holbrook Sunglasses blend a classic square silhouette with modern Oakley lens technology for improved color, contrast and everyday performance. Key attributes: Black | Nero | O-Matter | Prizm lens technology (enhances color and contrast) | 100% UV protection | High Definition Optics (HDO) | Lightweight and durable O-Matter frame | Available with Prizm and polarized lens options | Comfort-oriented temple design | Square front | Keyhole bridge | Metal rivet accents on temples | Dimensions & fit: Lens width: 55 mm | Bridge: 18 mm | Temple length: 137 mm | Standard fit | Composition & care: Frame: O-Matter | Lenses: Prizm lenses | Clean lenses with the included Microclear cloth or rinse with fresh water and dry. Avoid solvents and abrasive cleaners.