Oakley HSTN SQ Sunglasses combine a squared-off silhouette with Oakley’s O-Matter frame and Prizm lens technology for enhanced contrast and a secure, active fit. Key attributes: Gray | Grigio | O-Matter | Prizm lens technology for improved contrast | Impact protection | 100% UV protection up to 400 nm | Unobtanium nosepads for improved grip | Lightweight, durable frame for all-day wear | Squared silhouette | Full-rim frame | Metal detail accents | Dimensions & fit: Size L (133 mm) | Size L (133 mm) | Composition & care: O-Matter frame | Polycarbonate lenses | Unobtanium nosepads | Clean lenses with a microfiber cloth. Hand wash frame with mild soap; avoid abrasive cleaners and solvents.