I've purchased these long sleeve tees many times on the past and been very satisfied. However, with my most recent purchase, the quality of the material has definitely declined. Also, the fit is a much baggier cut than before.
The shirt is a little heavier and has a shine that other t-shirts do not. I stain shirts all the time and this one survives and looks great out of the wash. Size chart is true. The neck is tighter than most t-shirts but that makes it look better and I can wear it to work and look good.
The long sleeve tee is top quality and very comfortable. No need to purchase a size larger. They do shrink slightly after weekly washing over two years, or is it that I gained weight? None the less, I buy a few new one every year.