There’s a good choice of kit out there now and it will all do the job to one degree or another.
I used to have Keis gear (jacket, waistcoat and gloves), but after experiencing problems with reliability and poor customer service, I decided to switch to Warm and Safe stuff. This has been a revelation as the quality is superb as is the overall design, fitting and functionality. The distributors in the UK are now Motolegends and they cannot be faulted on their after sales service.
If you want something to wear all day on the bike, then the heated baselayer is a great option as it sits close to the skin under your normal bike clothing and doesn’t restrict movement in any way - in fact you hardly know it’s there. It can provide the optimal amount of heat just where you want it and you can layer over to keep that heat in next to your skin.
If you prefer the ability to put on and take off kit when you get off the bike, then the heated jacket is the better option. This is made from very thin and flexible material which is also windproof. I have found it to be really comfortable when worn under my usual jacket (Belstaff or Rukka). It also looks smart if worn off the bike at a cafe etc.
For keeping hands warm, I have moved away from heated gloves, which I found tended to overheat certain parts of my hand (leaving red marks) whilst not heating other areas enough. I now use the Warm and Safe heated glove liners which are amazing and can be adjusted to deliver just the right amount of heat to your fingers, which are the bits which feel the cold the most. I believe there are a pair being offered on this site at a very good price.
And finally the best bit for me is the Warm and Safe Dual Controller - with this I have almost infinite adjustment of the settings on both my jacket and my liner gloves independently which gives me the ability to get just the right temperature in the body and hand areas separately I have found this to be so useful when going from higher speed riding, where you need it up a bit to counter wind chill, and then turn down slightly when you get into a town or city environment where you need less heat. Personally I think it is the best heat controller on the market at the moment.
Here’s the Motolegends review of the Warm and Safe stuff:
Whichever brand or option you go for, you should find that heated clothing transforms your riding and makes it a much more enjoyable winter experience!