3M Speedglas 9100X that's been with me since college all the way through my redseal/journeyman career of 7 years. So far it's out lasted every other welding helmet that's come thru my
3M Speedglas Welding Helmet 9100 FX with filter 9100V/9100X/9100XX
3M Speedglas 9100xx - YouTube
Speedglas 9100X Welding Helmet | 3M Auto-darkening Face Shield