Winter is upon us, which means cold clammy feet for many of us. But if you’re an early adopter and a tech fiend like most of our readers, you might want to consider Digitsoles. They are connected insoles that warm up, and connect to a smartphone app. This allows you to control the temperature, as well as to receive some basic information like the number of steps taken and distance traveled. The heat can be cranked all the way up to 122°F (50°C), and the battery should last up to 7-8 hours continuously. That’s a heck of a full day of walking in the cold. Combine these features with a waterproof construction, and an extra cushion in the heel to help absorb shock, plus arch support and side walls to help keep your feet stable, and what you have is a solid product that almost justifies its $200/€200 asking price.