Buy a size down!
Verified Buyer Reviewed by Eugene Runner from Oregon on Friday, December 22, 2017
For the price, this is a nice garment for running, but it fits on the full size and the neck opening is really big. Not a perfect fit or garment, but for the cost, I kept it. It will keep you warm in low 40's weather, but it will work in cooler temps with a layer under it which it has plenty of room for.