The Suncloud Hook's design mixes a great look with functionality, fit, features and durability making it a staple in your sunglass collection. Medium fit and 100% protection. . Suncloud polarized lenses selectively filter horizontally reflected light waves known as glare. Glare elimination results in superior visual clarity, definition, color transmissions and optical comfort. 8 base frame shape curves around the face for excellent wrap fit. 8 base frames provides added protection from annoying side glare and environmental elements such as wind, dust and particulate matter. Hydrophilic Megol features in the nose area keep glasses secure during activity. Frame is crafted from optical grade Grilamid Nylon for a quality fit and lasting durability. Custom logo plaques for a one of a kind look. All Suncloud Polarized Optics come with a microfiber storage bag that can be used to clean any smudges off your lenses.