These goggles are for general indoor purposes that require impact protection. Vented lens and frame to increase air flow. Headband and temples feature ratchet adjustment for perfect fit and features quick fit retainer. Interchangeable temples and headband are included with each pair. The 9.75 base curved lens provides full side protection. Scratch resistant polycarbonate lens provides 99% UVA/B/C protection. Passes MIL-PRF 32432 High Velocity Impact Standards.