Good things come in threes, right? Well, Mia Moretti certainly seems to think so. The DJ, designer and general cool gurl took her co-ords game to the next level when she attended a dinner at Barney's in New York earlier in the week. Make like Mia and add a third piece into your twosie mix by knotting a same-shade jacket around your waist. Besides looking ultra fresh (and giving a dressed-up look a hint of dressed-down grunge), it doubles up as a cover-up when that inevitable nighttime chill kicks in. Result.

Want to try out board shorts? See how to nail them à la Jourdan Dunn.