OK, so the rucksack trend may have been knocking around for a while, but its latest 90s reincarnation is seriously rad for going-out. A move on from the Chanel supermarket show where Kaiser Karl spray painted and graffitied his faded denim rucksacks, the trusty double-strap bags have had a rave-tastic look-at-me makeover: it's like, metallics, foils, iridescent finishes and tie-dye. Basically, all the gloss of a going-out bag, but in a hands-free way. Glow sticks optional.

If you're after another one-item fashion update, check out how Alexa Chung made last night all about the ruffle top.