I got a size up because the cotton used is not pre-shrunk and I like loose pjs. I was hoping that would solve the shrinking problem, but wow, the sizing on the top was a real waste of fabric: there must be four inches too many on each side under the arms down to the ribcage. then it tapers radically to the hips, where most women need more room! Otherwise, they are not see-through and appear to have quality that will last more than one season.