Hi there, Been freezing myself lately due to my morning motorcycle commute to work on a regular basis even with several layers of clothing on. I recently made a custom order for a motorcycle leather jacket which comes with a polar fleece vest liner & I was looking into doing a little project for myself & that is to turn that vest into a heated one. I know that brands such as Gerbing, Firstgear & Keis do heated clothing & liners for us motorcyclists, but I believe that one can be made cheap with the right materials & almost any kind of fabric. I'm looking for tips, ideas & recommendations from others that will be able to help me fulfill this little project. What kind of parts should I use eg. wires, connectors & maybe a small controller to control the temperature. I'm hoping for something that will warm the vest up & myself without actually melting anything as well as having the option of either connecting it to the bike battery or just normal batteries. I'm not too fussed with the looks of the vest (the wires can stick out inside the vest). If I manage to do this little project, I might also look into heated inner glove liners. I've also attached pictures of people with their own DIY heated vest liners. Cheers.