Personal Jetsons-esque jet packs not withstanding, you only need to take a gander at these brilliant examples of wearable technology for proof that the future has arrived. Although pie-in-the-sky concepts like kinetically powered music players and solar-powered beanies abounded this year, we teased out the best ideas that had working prototypes already in place. (Some, like Zegna’s solar-powered jacket and Sonic Fabric’s cassette-tape fedoras are even available for purchase.) Have an inkling of what the next big thing is likely to be? Cast your vote below!