Oakley HSTN SQ sunglasses combine a squared-off silhouette with Oakley performance lenses for everyday wear and outdoor activity. Key attributes: Black | Prizm grey | O-Matter | 100% UV protection | Contrast-enhancing Prizm lenses | Impact-resistant optics | Anti-smudge and hydrophobic lens coatings | Unobtainium nosepads for secure grip | Prescription-lens compatible | One-size, universal fit | Squared-off silhouette | Full-rim square frame | Premium metal accents | Matte finish | Dimensions & fit: Lens width: 54 mm | Bridge: 21 mm | Temple length: 142 mm | Regular fit | One size (L - 133 mm) | Universal bridge and nosepad | Composition & care: O-Matter | Plutonite | Unobtainium | Clean lenses with a microfiber cloth or Oakley Micro Bag. Use Oakley lens cleaner or mild soap and water. Avoid solvents and abrasive materials. Store in a protective case.