Combining heavy-duty performance capabilities with bold design, the Wiley X Moxy is ready to handle anything. To ensure maximum durability, these glasses meet ANSI Z87.1 high velocity impact standards, as well as the EN. 166 European standard for withstanding small objects traveling at high speeds. They also are rated as OSHA-grade occupational protective eyewear and can withstand the weight of a 1.1 pound pointed projectile from a height of 50 feet. The shatterproof, Selenite polycarbonate lenses block out 100% of all UVA and UVB rays and are treated with a scratch-resistant T-Shell lens coating. The lenses are held in place with Triloid nylon frames that are virtually indestructible. These glasses are compatible with prescription lenses, perfect for those who require corrective lenses.