My husband usually takes a large in T-shirts, but, following the advice of other reviewers who said that this fits on the small side, I ordered up to an XL, and it fits great.

The T-shirt is really soft and comfy, and the grey color is really nice.  That being said, I've washed this about five times now, and the fabric is already starting to pill.  Since I bought this shirt for my husband to wear around the house, it's OK, but if you're going to wear this out, I'd recommend hanging it to dry instead of puttin it in the dryer.