What is it? Picture this. You catch the train to visit friends, have a great time, but on your way back in the evening, the train breaks down. You have to walk the last part of your journey home in the bitter cold. Your feet are getting colder. What can you do? With these Bluetooth-connected insoles, you can just grab your phone, open the Digitsole app and turn up the temperature slider. The Digitsoles in your shoes immediately start warming up, toasting your toes. When’s it due? Set for a January release, if it reaches its funding goal. Why are we excited? It does fitness tracking as well, and that warming feature could be great when it turns really bitter. It’s common for motorcyclists to have heated grips for their hands when riding, so why not warmed feet for the rest of us that have to trudge through the ice and rain on foot?