The Maui Jim Polarized Hana Hou Sunglasses combine vintage style with high performance lens technology so you can protect your eyes while showing off classic movie star looks. The Hana Hou's Monel metal frames are made with a corrosion resistant alloy and are held together by an anti corrosive traditional hinge so their timeless style lasts into future generations. Whether you're wearing these glasses tomorrow, or your son or daughter slips them on twenty years later, the bridge and non slip silicone nose pads can be adjusted for a perfect, secure fit. The Hana Hou's ST Super Thin scratch resistant glass lenses provide the best optical clarity of any of Maui Jim's lenses and are naturally scratch resistant. The lenses' unique polarizing film nearly eliminates glare while preserving color vibrancy in the surrounding environment, and an anti reflective coating eliminates glare from the back of the lens. Waterproof and oil resistant coatings on both the front and back of the lens make water droplets and smudges easy to wipe off, and the glasses come with a case and cleaning cloth so you can keep your sunglasses sparkling clean and unscathed important if you're going to keep them around long enough for them to go out of style and then become trendy again.