Ok, so I’m solidly in the “Dad Bod” division and when I tried on the medium featherweight hoodie everything looked great except the arms. They looked more like Smedium sleeves.
I rattled off an email to customer support and they informed me the sleeves are designed to be tighter to keep them out of the way for casting and to accentuate the raw power unleashed when you set a hook. That being said the rep apologized and offered me 50% off a large if I wanted to size-up.
Great all-around experience.