No matter how cold the weather gets this Winter you can stay toasty warm with this Heated Hat. This plush microfleece hat has a battery powered heating element inside. The hat provides up to 5 hours of heat over wide zones over the ears. Inside is a rechargeable lithium ion battery. You can control the temperature with a controller under the brim- low, medium, or high settings. Higher settings will drain the battery faster. The hat takes about 2 hours to recharge (AC adapter included).
Note: A similar (but less expensive) product is the HotHands Heated Fleece Cap which is a regular hat that has pockets to hold those HotHands heat packs. Not as elegant a solution because you have to replace the heat packs rather than simply plug in the hat, but certainly a cost-effective way to stay warm.