Spotted these lace-up flats with hot-pink-soles at Kurt Geiger boutique in the Avenues and they looked very familiar to me, Jil Sander introduced the same concept last season but used yellow soles instead. And then when I searched Net-a-Porter for them, I have found these (shown in the last photo) instead by a brand called Esquivel. I think they work really well with the boy-meets-girl trend. Price tag? KD 55.