Received this today, but not very cold outside -- so can't attest to its warmth. The weight is good, though. I did not want something bulky. It can easily be worn under regular clothing. It amazes me though when a company will say its a plus size and "full cut", but the fabric is just not there. Do they think we will believe it's a certain size just because they say so? I have an adult medium thermal top that fits no tighter around in the body of the shirt than this one does. The sleeves are a little longer, the arm holes are larger, and it's a few inches longer --but the fit around the body is not a plus size. Just be warned. I wear mainly 1X - sometimes a 2X depending on the company. If you don't mind the body of the shirt being skin tight, than it will be fine. I am hoping it will stretch with wear - not worth the trouble and cost to return.