Bought this shirt for my guy who is a Carhartt fanatic. He loves their pocket t-shirts for their comfort and durability (they're a thicker cotton). He wears them just about everywhere -- in the summer alone or in the winter as a layer. Like others have noted, the sizing runs on the large size which, I think, is standard for Carhartt (cut and fit for the workin' man!). My guy usually wears a large in just about everything -- except Carhartt when a medium provides a better fit, with still plenty of room for comfort.

I first bought 2 of these pocket T-shirts. Size L. My chest is 40 and I can vary between a medium and a large. I buy my large T-shirts because I like them a little baggy. The first order of large shirts was way to big for me. My brother is an extra large and it fit him so I gave them to him. I made a second order for medium shirts and they too were way to big for me and they fit my brother except the sleeves were a little too short but I gave them to him also.

The guys love these shirts as they hold their shape really well and are good for many washes. They are very comfortable too! The sizes do run alittle bigger than other brands but not much.

GREAT SHIRTS FOR A FANTASTIC PRICE

Like the guy above says they run big but have a lot of ups. They do have a unique fit to. I typically wear XL, have 44/45 chest, big shoulders and not big arms. This shirt fits my circus performer frame great if I go w/ a large. It's actually my favorite fit. The cotton is heavy weight like 2x a Beefy T and the pocket is great for shades or paper and a pen for writing down measurements and other numbers ;>)