$100??I went to my local Army Surplus store and got the Poly propelene that they issue to the troops it's thicker then UA zips up to a turtle neck and two sets top and bottoms were $68. My stuff is 2x, my son's were large. I also got a wool sweater for the boy for $5.
Here's a picture of the stuff,been using it for years,and the wind don't cut through it.