Ray‑Ban Chromance Sunglasses combine a metal front and acetate temples with Chromance polarized lenses to deliver enhanced contrast and full UV protection for everyday wear. Key attributes: Black | Metal | Polarized lenses | UV400 protection | Chromance lens technology | Can be fitted with prescription lenses | Metal front with acetate temples | Slim temple profile | Gloss finish | Dimensions & fit: Lens width: 54 mm; Bridge: 20 mm; Temple length: 145 mm; Height: 46 mm | Lens width: 56 mm; Bridge: 20 mm; Temple length: 145 mm; Height: 47 mm | Composition & care: Metal frame | Acetate temples | Glass lenses | Wipe lenses with a microfiber cloth and mild lens cleaner. Store in a protective case when not in use.