The ESS 5BTM is far more than just another sunglass. With ballistic high-impact lenses, universal-fit frames, distortion-free optics and all-day comfort, the 5BTM is the true embodiment of functional, fashionable eye pro.Designed to provide superior impact protection without interfering with your other gear, the innovative 5BTM 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 5BTM sunglass is compliant with U.S. MIL SPEC MIL-PRF-31013 (clause 3.5.1.1), ANSI Z87.1-2010, CE and U.S. Federal OSHA. All ESS lenses provide 100% UVA/UVB protection.Sizing: The ESS 5BTM features a universal adult fit for both men and women.