I have the Kiln hoodie, its pretty light. If its 40F and over I rock the Kiln only, hike to my location then throw on a light insulation layer if needed. 40F and under Ill throw the furnace on alone and hike to my spot and throw on an insulation layer. Both fit me really well, XXL muscular, and really struggle to find proper fits. I have had them both for about 3 years now, the furnace seems to have held out better (kiln is starting to show some very light pilling), but they are both in good shape. I lived in the furnace for a week straight for a moose hunt in Northern Ontario and it just did not smell. Both are quality top notch pieces IMO.