Ergodyne - EGO56035 Removable rubber temples let you convert these glasses to goggles with the included goggle elastic strap. Add the removable foam gasket (included) for a dust-beating seal. Tough, polycarbonate lenses are anti-scratch and anti-fog to protect against impacts and filter 99.9 percent of harmful UVA, UVB and UVC rays. With 16 percent Visual Light Transmission (VLT), these smoke lenses are ideal for outdoor and bright-light conditions. Durable frames bend and flex without breaking. Nonslip rubber temples keep the glasses secure and resist sweat. These impact-resistant safety glasses are tested to ANSI/ISEA Z87.1-2020 High-Velocity Impact Protection and optical requirements that is the U.S. standard for Personal Eye and Face Protection Devices and is listed on the frame (Marks: Z87.1+ X). Skullerz Loki Anti-Scratch and Enhanced Anti-Fog Safety Spoggles are also tested to MIL-PRF-32432 Ballistic Fragmentation, Class 1.