I bought the plaid button down in Medium at the Nordstrom PopUP in NYC. The shirt is "perfect" in so many ways. 1. The magical hidden buttons right at the bust line would protect from gaping all by themselves, but 2. the construction of the shirt itself is clearly made for more room cut at the front of the shirt. 3. The cotton is crisp and cool. 4. Not only is the bust area considered, but so are the sleeves. So many times when I purchase button downs, the sleeves are baggy and too roomy. These aren't necessarily slim, but they are cut in a way that understands that big boobs doesn't mean big arms.
I will be saving up for the white for sure!