Fits well for 6/218 dude , not beer belly here ( flat stomach , athletic body ) . Well made overall . Just fleece material to thin , also a bit overpriced . I got L size , not a bad product .5 Stars because it met my expectations and was true to description. Having said that, there are a few nitpicks that make it just shy of great. But first: I’m 6’-1” and 195 pounds. Wrestled between trying a large or XL, so played it safe by going XL. I think it was the right call. Fits perfect around chest and arm length is great. Elastic around cuffs keeps drafts at bay too. I was happy to see the Polartec label, as another Amazon retailer seems to be selling the exact same product for a few dollars less but does not show that it’s made with this high quality fleece. Being a lightweight backpacker, ounces matter, and this is a great mid layer for just 9.2 ounces. Nit picks: I wish the collar zipped a little tighter around my neck to seal in heat. And it’s a little “blousy” in fit around the bottom for my weight, but not too bad. Finally, you can probably find similar quality, fit, and function cheaper if you look for sales. But overall I’m happy and glad I got it.This shirt is PERFECT for cold nights in bed or by the fire. Great layering garment. Lightweight and stitching is nice. Fit and feel is very comfortable and high quality.I like it.Calidad y comodidadNice material and very warm(good for a base layer). Ur trying the item on twice made the body portion stretch out/bag out so it almost instantly got really sloppy looking. I sent the item back because of this.This M-Tac men’s thermal underwear top fit true to size. Its super warm and holds it shape after being washed. I would recommend to interested buyersgreat hunting shirt