How's the sizing with these shirts? I usually wear medium, but I wear Large with under shirts since they shrink alot, I am 5' 9" 160lb, chest size 39, should I go with Large or something else, thx.
I'm 5'9", 170lb and wear a medium undershirt in these. They are very nice quality and great for long-sleeve shirts. However, the sleeves are a little long and so stick out when I wear them under some of the newer "fitted" polo shirts.