Our department deals with emergency weather from extreme cold to extreme hot and in between that we have two tornado seasons. This has cause us to make emergency bags using the Orion bags, the admin insert and this jacket . It stows to a perfect size and as it is it is small and does not take up room in the bags. It doubles a pillow when I am not needing it for a jacket which has come into play multiple times. The warmth of this coat is great. A t-shirt and this are enough for most winter trips to run errands. Hiking in open spaces, I find that it easily keeps me warm and pending on the weather, I have had to partially unzip the coat to vent. I would not run through the brush with this coat and it is not intended for that, but I do not baby it. It has been a great inner layer to the raincoat and as long as you plan your gear properly this will make your excursions more pleasurable.