For outdoor use electrically heated clothing also has another great benefit - it broadens the useful temperature range of the clothing that you're wearing. I f

For outdoor use electrically heated clothing also has another great benefit - it broadens the useful temperature range of the clothing that you're wearing. I fly an open cockpit aircraft (an Autogyro). In the winter months I wear a soft-shell flightsuit, with an Ororo electrically heated Gilet underneath. The flightsuit itself is very warm, and the gilet provides extra insulation over my torso even when off. This is sufficient to keep me warm most of the time, but then if it does get colder I can just turn on the Gilet the appropriate amount and I'll be cosy. The heating elements are close to my skin with both the gilet and flightsuit insulation on the outside so the heat stays in where it's needed. This setup works anywhere from "slight winter chill" down to "as cold as I have encountered". And because my core is so warm, I don't even have to have too much in the way of gloves (I use some hand knitted merino roll top mittens so I can still use the controls easily).