Are you asking me? It was five degrees out today. I shoveled my driveway and my neighbors in it. Then walked about a mile one way down to the Bitterroot River and back in it. I was fine. Now if you are sitting still no, you will most likely need more unless you are more Polar Bear blood than I am. Total time outdoors in it today in 5 degrees was three and a half hours. Was not cold at all.
