I went with my regular western size and think it is the right fit. The measurements were accurate according to the size chart. Despite the chest being about an 1 inch larger than the rest of my westerns it still did not feel larger than them, still very comfortable and did not feel oversized. The shirt has some nice drape/weight to it while still feeling soft, fall/winter vibes
Here is a photo wearing of me wearing the shirt with the classic 888 21oz
The photo of just the shirt is what i think is an accurate representation of the color