I bought this because I had borrowed one from a friend and it was soft and warm . This one was a bit scratchy and lighter but it did keep me very warm. I did not know there were different types of thermal underwear but now I do. This one may get better with time and washings but it was not what I was expecting. Silversong 2
I loved these so much I'm going to order two more. Perfect for winter running or for a warm layer under jeans. It's just the right thickness, not so thin like silk but breathable and lightweight enough to run in. I liked the fit, snug but not tight.