What is Wear Heating Technology？

Carbon fibre heated clothing works using strips or tubular heating elements, like wires, that are spaced across the heated areas of the jacket to provide warmth. While these elements are flexible to allow the user normal movement, they are more rigid than the apparel itself so do reduce flexibility.

At any temperature that you start to feel chilly, a heated vest can add some welcome warmth. For many individuals, that's around 40 to 50 degrees Fahrenheit. They're also suitable for pairing with a warm overcoat if you need to stay warm and toasty in even colder temperatures.

You want it fitting on the tightish side because you want the heating elements pressed up against your skin. Loose = air space between skin and heat, and air space is a great insulator. That said, if your outside armored gear fits well, then it should do a good job of pressing the e-jacket against you.