I have purchased P.B. items before and like the femine styles. I do think some in the line especially the non cotton blends or rayon type material tops run smaller than the cotton blends.  Some of the items are a bit pricey as well but worth it for a great fit. This product feels soft and substantial.  I purchased this in the red in medium and another in the lilac/light purple color in a small.  For reference:  I am 5'3," run between 118lbs, 34C, and have a little C-section pouch.  The lilac/light purple color in the small fit great everywhere except the tummy area.  The rushing is great but can only hide so much.  I opted for this red color in medium which is roomier on top but fits better at the tummy area.  If you are not as self conscious as I am about my pouch, then you could easily rock the small.  The colors were very pretty in both regardless.  This is wide enough at the shoulders to cover your bra straps easily without peekaboo worries.  I would recommend her clothing.