A classic shirt is a wardrobe staple for good reason and London-based fashion label, With Nothing Underneath, has built its entire brand around one especially good version. Inspired by mens tailoring, it’s even called ‘The Classic’ and it’s cut from fine-yarn organic cotton to be wonderfully lightweight. The crisp white and sky-blue options are our favourites – pick them up in the Marylebone, Belgravia and Notting Hill stores.