We love Lily Cole in the latest ad campaign for Marks and Spencer. This dress has been featured in Vogue, and while it gives a bit of a nod towards the current trend for all things nautical, it’s not so nautical that it’ll have people saying "hello, sailor!" every time you walk by. The neckline is v-cut at the back, and it looks great here with the narrow red waist belt and matching shoes, although personally we’d go for heels rather than the flats Lily’s wearing in this picture. The dress is a reasonable £59.60, the belt will cost you an extra £5 from Marks and Spencer’s Limited Collection.