Engineered in partnership with Wiley XÂ®, a global leader in sports and military eyewear, the 5.11Â® Aileron Shield Ballistic Glasses combine adaptability, durability, strength, and style in one high performance package. Aileron eyewear includes three sets of polycarbonate high impact rated lenses that can be quickly mounted or removed from a high strength nylon frame, enabling you to adjust your light reduction preferences to match your surroundings. Lenses are fully prescription ready, and arrive in three distinct tints to suit a wide range of environments: Clear, Smoke and Ballistic Orange. The Aileron meets ANSI Z87.1 2010 and EN166 (+F) High Velocity Impact and Optical Safety Standards, and exceeds MIL-GL-PD-10-12 US Military Combat Eye Protection Systems Standards for Impact and Optics. Additional lenses can be ordered separately.