Festival Flag

I'm not really one for celeb gazing - I don't really give a hoot what they eat/drink/smell like/who they're dating/where they're partying, but I was browsing through the latest issue of Grazia magazine and I came across this image of Agy Deyn in a beautifully washed out American flag dress from the Cochella festival. Does anyone know anything about the dress in question, or who it's by? I think its a great take on the boho trends of seasons past, with a brilliantly modern and relaxed festival feel. Thumbs up Ms Deyn....but do tell me your serect.