A1 experience with Revzilla. I already had two other Merlins and both were in medium, so when I ordered this Merlin Barton II in brown, I ordered medium without hesitation. Absolutely beautiful jacket, but it turned out to be way too small for me (5'11" 42 chest, narrow build). I could barely pull this one on. Returned it with zero hassle, and received a large within two days! Fits perfectly, and it is now my alpha jacket. Thank you Revzilla!