This jacket was perfect for cold weather running. Kept me nice and cozy below freezing and the back material helps regulate temps to get too too hot. Zippers looked dicey on day one though. The zipper on the arm pouch was hard to use and separated the first couple times I tried it, so I just ignored that one. The main zipper was a bit tricky too, but now does not work at all. I've worn it maybe 5 times and haven't been particularly rough with it, so this is pretty disappointing. I have another EB jacket that works just fine. Seems like EB was trying to save a few pennies or something disappointing like that. I'd avoid it.