I was puzzling over which brand it must be as I could tell it was some sort of designer brand, then I had a look at the label which the kind staff must have decided it was necessary to add seeing as the original label had perhaps fallen off ... Stella McCartney for Target!
It must have been from the first time round as the second collaboration has only just hit the shops. Really, it's not my usual style, but I always get brainwashed by those "must have items" lists which always feature white shirts, so I decided to splurge. FOUR DOLLARS. Big splurge. You can see what it looks like here, if you are so inclined.