Oakley Cybr Zero Sunglasses combine a rimless, athletic shield with photochromic lenses for clear vision across changing light. Designed for lightweight comfort and enhanced airflow, they suit active and everyday use. Key attributes: Black | Nylon | Photochromic polycarbonate lenses (clear to black) | Lightweight frame | Impact-resistant lenses | Ventilated design for improved airflow | Flexible O Matter temples for comfort | Secure fit with non-slip nosepad/earsocks | Rimless toric shield | Ventilated frame profile | Sleek modern silhouette | Dimensions & fit: Lens size: 39 mm | Bridge: 139 mm | Temple: 125 mm | Height: 50.0 mm | Universal fit | Recommended for oval, heart and round face shapes | Composition & care: Frame: Nylon | Temples: O Matter | Lenses: Polycarbonate (photochromic) | Clean lenses with a microfiber cloth and approved lens cleaner. Store in the protective case when not in use. Avoid abrasive cleaners and high heat.