Maui Jim Malu Sunglasses pair a matte acetate rectangle frame with polarized HCL Bronze lenses to reduce glare and enhance contrast for bright outdoor use. Key attributes: Black | Acetate | Polarized HCL Bronze lenses | 100% UV protection | Full-rim frame | Rectangle shape | Matte finish | Dimensions & fit: Lens width: 63 mm | Composition & care: Acetate frame | HCL® Bronze polarized lenses | Wipe lenses with a microfiber cloth; store in a protective case; avoid abrasive cleaners and high heat.