COS Oversized Mandarin Collar Button Up Sage Green Structured Shirt Large Great minimalist style dark green shirt by COS. The collar is a mandarin collar, buttons up the front, and a 3/4 sleeve. Great to pair with any bottoms or under a sweater for a ton of layers. Really great top that I bought for myself but never really ended up wearing. My lose is your gain lol. Nice oversized fit and buttons up over your chest well (most button ups do not fit me, but this one does). Approximate Measurements: Length: 29.5" Pit to Pit: 23"