I found them the other day. They are a really nice knee length, jersey material dress with a cross over/wrap around style top. Because the material is really soft and stretchy it is easy to pull to one side and put back without looking dishevelled. Obviously I layer mine up with a vest underneath.
They have them in about 4 or 5 different prints, I got a lovely black and white swallow print one and they are only £20 each.
I would link but they don't have them on their website. I have teamed mine with leggings and boots and they are really quite flattering.