I keep finding stuff on the trail. Haven't tested it all yet..
Today, at 5 degrees, I used a full-face hood, with neck coverage and a nose piece that I kept well away from my skin. Over this I had a poly sweatshirt hood, a bomber hat, and an outer light-parka hood while running 15- 35 mph on my snow machine RT about 45 miles. Stops to glass and kill. Had to remove outer parka, bomber hat, and push back the shirt-hood to dress the game. Too hot. Kept the hood on, with face part pushed down.
The hoodie nose piece iced up while snogo running, but wasn't a problem, as it was out away from my skin. It did keep the breeze off, and nose and chin area warm. Also was wearing snow machine goggles for full face coverage.
The hood also kept my neck warm, along with the high collars on the under jacket and light parka. Sometimes i also wear a neck gaiter, which can be pulled up. but not today. It was in the fanny pack, tho. Yes, it does ice up when breathed thru.
I've been at this awhile....