Maui Jim The Flats are rectangular sunglasses built for outdoor use, featuring SuperThin Glass polarized lenses for crisp optics and reliable glare reduction. The dual-tone frame pairs a durable nylon build with a comfortable medium fit for everyday recreation. Key attributes: Black | Tortoise | Nylon | Polarized HCL® Bronze lenses | 100% UV protection | Scratch-resistant SuperThin Glass optics | Enhances color and reduces glare | Prescription compatible (Rx-able) | Spring hinge | Includes protective tri-fold case and microfiber cleaning cloth | Rectangular silhouette | Dual-tone frame | Saddle-style fixed bridge | Dimensions & fit: Lens width: 57mm | Bridge: 19mm | Temple: 136mm | Medium fit | Composition & care: Nylon (frame) | SuperThin Glass (lenses) | Wipe lenses with the included microfiber cloth and store in the protective case. Avoid abrasive cleaners and prolonged exposure to high heat.