For anyone who is interested in the COS Hidden Placket Shirts, I just received mine today (very fast shipping!). Here are measurements for the size 15:
Shoulder to Shoulder: 17"
Pit to Pit: 20"
BOC Length: 29"
Sleeve Length: 25.5"
The armholes are relatively high, but not as high as the Japanese brands I'm used to. Fabric is better than Uniqlo's, but not anything spectacular. I think the buttons may be mother of pearl, but don't quote me on that. Definitely a...