Menswear has already made buttoning the top button of dress shirts cool, and this trend, as well as peter pan collars, are being absorbed in women's wear.
You can even purchase collars that lay on top of your crew neck sweaters, cardigans or circular necklines separately.
Here's the deal though...This trend is for the small chested. In general, if you have a large bust line (D cup and up), your body looks larger without some skin space. So, if you're in that classification, stick to v-necks and scoop necks and sit this trend out.