Not just your standed sock, with the high-tech materials for optimized heat distribution. It's a laterally mounted battery pack with a snap buttons on the cuff of the sock.

The battery life is eight hours, so eight hours of riding around with toasty toes!  There are three heater settings 1-3, you have it on the hottest setting you'll get 1h45-2h15 and if you have it on the lowest setting you'll get upto the eight hours.

There is also a free app on the app store and google play stores that you can control the heat of you're socks!!!