P2P is just under 21.5" I can't take the other measurements due to construction of the garment. No shoulder seams really. I wear a M BD in Monkey arm and the sleeves on this are long enough for me to cuff them. If you aren't familiar with WvG, go to the website and look at the sizing chart for the button downs. The size you take in the button downs is the size you take in the sweater.
3/4/15 at 12:25pm