Ray-Ban RB3768 Sunglasses pair a minimalist rimless silhouette with Transitions Color Touch photochromic lenses. Ideal for all-day wear, they adapt from indoor to bright conditions while maintaining a sleek polished-silver finish. Key attributes: Silver | Amethyst | Metal | Photochromic (Transitions) lenses | UV protection | Photochromic (Transitions) lenses | Includes case and microfiber cloth | Rimless | Square-round shape | Dimensions & fit: Lens width: 56 mm | Bridge: 17 mm | Temple length: 145 mm | Lens height: 39 mm | Frame width: 131 mm | Size 56 (56-17) | Composition & care: Metal frame | Plastic lenses | Wipe lenses with a microfiber cloth; store in the supplied case.