1 & 2 Isabel Marant, 3 Pull & Bear, 4 & 5 Zara (!)
At the top of the list the Isabel Marant one off-course, however there are also the affordable options like those from Pull & Bear and Zara. In general one can find the specific design in several brands with a few or not differences, but i prefer the Zara ones. Already got the black one and wait to see the white one as well !!!