Longhunter shirt questions

[restless]

I have a Brown med weight in XL worn twice that I would trade for a 2XL if any one cares to. too tight across my shoulder's

[Ron LaClair]

I am getting ready to order one of Ron's shirts.I was just wondering how the sizes run.I am a small framed guy.6ft 160lbs.I was wanting enough room for a sweater or something underneath.I was thinking a med but I just want to be sure.Thanks...  

Bones, I'd suggest a medium

Gray Buffalo, you can get get a XXXL, special order.