The Gerbing electric clothing is great.
I have the Gerbing electric jacket liner, pants liner, gloves, and the socks. Today I used all of them except for the socks. I'm just drove from NYC to North Carolina (I'm on my way to San Diego). Perfect for the cold weather. I also use the "heat troller".
The old versions of there "heat trollers" had problems, but them have since fixed them. Also noticed that recently they are using a new designed temperature controller.
They also switched to a newer plug design which is easier to connect and disconnect (I have the old SAE plug version).
Just watch out for overloading your electrical system and discharging your battery. I once ended up with an XR650L with a dead battery and the bike fallen over in a snow bank while in the Alps. I've since learned to be more careful. On my KLR650, I have a kill switch rigged to the headlight, so I can turn it off and use that juice for the electric clothing.
Overall, I highly recommend the Gerbing clothing.