I suffer overall cold
Once the torso has cooled down for good, an ordinary jacket only keeps heat in, and a chilled body needs a fresh source. Heated thermal underwear, heated trousers and hoodies warm from the inside, exactly where heat escapes fastest: the back, belly, lower back and knees. You wear them under normal clothes, so from the outside it looks like an ordinary outfit while your heating is on.
When the cold also attacks from outside, you add an outer layer: a heated vest under a jacket or a heated jacket instead of a regular winter one. Each layer has its own battery and its own control, so you combine them the way the day demands. You will find specific models in the Heated underwear and Heated jackets and vests categories.