Columbia's Electro Amp jacket is arguably as teched out as a jacket can get really. Designed by a former Intel engineer, the jacket warms itself through the carbon fibre threads woven into the coat. And even it recharges via USB.
According to GearJunkie, the carbon fibre threads feel like yarn, and they can keep your warm for five hours straight on it's lowest heat setting. But slick tech such as this comes at a premium, and that premium is $US1200. So, how cold are you? [Gear Junkie]