First off, the frame on this is very solid, and the lenses seem to be fairly durable. As a stress test, I shot these with a 330FPS Airsoft gun from 2 inches away and they were completely undamaged. However, it does not say anywhere whether they are ANSI certified (which means they probably aren't), so I'd be wary using these at an actual Airsoft game, especially with higher powered Airsoft guns. As with all goggles, I recommend putting them through stress tests before trusting them to protect your eyes. Despite the "anti-fog vents", these do fog up, so make sure you get some anti-fog spray, or the poor-man's solution, soapy water. For applications other than being shot in the eyes with 6mm plastic BBs, these are great goggles, at a great price. 4 stars