Walker's Impact Resistant Interchaneable Sport Glasses Kit w/ 3 Lens 4 Interchangeable Lenses. High-grade Polycarbonate lenses allow for quick and easy lens replacement. Exceeds ANSI 287.12003 high impact requirement. 4 Interchangeable Lenses High-grade Polycarbonate lenses allow for quick and easy lens replacement Exceeds ANSI 287.12003 high impact requirement UV Ultimate Vision Ratcheting lens pitch adjustment for custom fit and comfort Design allows air to flow freely preventing lenses for fogging Adjustable nose pad conforms to a broad range of bridge sizes Includes soft carrying pouch