I read a review about how these were a looser fit, so I grabbed a size 40 (which lined up better with my usual measurements) instead of my regular 42 size. This was a good decision. The fit is fantastic and the quality is incredible. Raschel weave is so different than a regular waffle weave and feels great. I have some thermals from a heritage American company, which are good, but these are significantly better (and for half the price).
Heavyweight Raschel Knitting Waffle Thermal Shirt - Apricot