Forget smartphones and smart TVs, how about smart underwear?

What would we do without our smartphones? Over one billion will be purchased globally this year, according to the latest data from Euromonitor International. Small wonder, then, that many in the fashion industry are keen to grab a bigger piece of the “smart” action by developing their own lines of wearable technology, from smart socks to smart bras. The big question is whether smart fashion, like smartphones, has the potential to become part of the retail mainstream.