Lovely comfy, warm, but lightweight thermal tee with the quality you can be sure that Columbia brand has. It is long waisted, which I love for coverage or to wear with tight or low-rise bottoms. This Medium has stretch but is roomy. Would make a great pajama top if you don't nees to work or play out in the cold in layers. Either way, stay warm in style. (I bought for work then changed my line of work...never worn)