Gamehide camo. I've used many brands, surplus and homemade for 50 years and Gamehide is my all time favorite snow camo. It is synthetic so does not stay wet like cotton, no insulation, quiet, and so thin and lightweight that I ball it up in pack or pocket and sometimes don't put it on till I reach my calling stand. I depend on usual cold weather layers for warmth and only want camo from this outer layer, not more insulation though it does add some shell type warmth. It is also good camo, hides me remarkable well. I've had coyotes, bobcats and lynx do a double take and squint at me inside of ten yards.
It is also cheap. I got mine on sale from Sportsman Warehouse but here is a source online to show what it looks like.
https://www.amazon.com/Gamehide-Amb...p;sr=8-13&keywords=snow+camo+for+men