The Adjustable Sport Glasses Combo Kit features high-grade polycarbonate lenses which exceed ANSI 287.12003 high impact requirement. Its design allows air to flow freely to prevent fogging and features ratcheting lens pitch adjustment for custom fit and comfort. This model also has an adjustable nose pad to conform to a broad range of bridge sizes. Included are four interchangeable lenses (clear, amber, yellow, brown), and a soft carrying pouch.