The best thing I have bought for the cold due to work, I wear it under my clothes and it breathes perfectly, keeping me warm. It's exactly what I needed. 4 stars to see how it will hold up over time, and I will come back. I'm back... five stars for the second winter that I wear it, just a little tight around the belly area, one size bigger would be okay. Normal wear and tear, I will definitely buy it again, so it gets 5 stars