We relished the chance to wear our summer-holiday wardrobe in the city when the London heatwave first hit. But with no sign of this glorious weather abating, we’ve needed to hit the high street for a few new staples. From a floaty white dress to a statement maxi skirt, and let’s not forget a wide-brim hat squashed into our bag (to avoid all the wrinkle-causing sun damage!), these pieces will keep you looking cool, calm and collected.