Something to cover your face is essential. in my opinion. It really changed my success when I started consistently using it. But as mentioned it gets everywhere, and if you're on a 5 day back country trip it doesn't help with the cleanliness feeling either. I use the Kuiu neck/face gaiter. It is extremely thin and breathable, no problems with glasses fogging up etc. Most important is that it is tight up against your face, so the loose material doesn't doesn't effect your shooting.... I think we are talking archery here.