Ergodyne - EGO56005 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 95 percent Visual Light Transmission (VLT), clear lenses work well in indoor, low-light and nighttime 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.