I saw a video of some sort of motocross meet (not familiar with it) and apparently the visors become completely covered with mud, so riders start the race with several clear plastic strips on the visor and they tear one layer off off as needed. (A comment was made that motocross meets are littered with the debris). Probably wouldn’t need to be so dramatic here.

As an alternative - would a headset lite version without the AR work better here? Display needed information on a nearby tablet or large tv while the user wears a headband only.