The ESS 5B™ is far more than just another sunglass. With ballistic high-impact lenses, universal-fit frames, distortion-free optics and all-day comfort, the 5B™ is the true embodiment of functional, fashionable eye pro. Designed to provide superior impact protection without interfering with your other gear, the innovative 5B™ represents the culmination of years of intense listening to customer feedback. The end result is a sunglass you’ll trust just as much on duty as off. Safety Standards: This 5B™ sunglass is compliant with U.S. MIL SPEC MIL-PRF-32432 (Impact), ANSI Z87.1-2010, CE EN 166 and U.S. Federal OSHA. All ESS lenses provide 100% UVA/UVB protection. Sizing: The ESS 5B™ features a universal adult fit for both men and women. Online Risk-Free Guarantee: Don't have a local ESS dealership to try on the 5B™ for fit™ Order the 5B™ from this site--if the product doesn't fit you well, you may return it in as-new condition within 30 days for a full refund.