I have bought woobie clothing in the past from Zero Foxtrot and always loved it, and it drives my wife nuts because I refuse to wear other hoodies, and get ride of my field jacket from the service. Well i bought these knowing I'm a little bit bigger than the 2 XL, but was going to use them as a base layer, so.i tried them on and they fit the way my thermals would fit, there is some stretch to them and I can't wait to get them out in the woods and sit in the cold this winter while deer hunting