I am considering getting my wife a dual source heated Harley Davidson women's jacket. It can be powered using a lithium battery or any 12v source (like a bike).
I beleive it is waterproof, insulated, cut for a female and not overtly branded. I'm not sure who makes it. Gerbing makes the men's single source.
Me? I now use a heated jacket after years of using a vest. Jacket much nicer. Mine is wired to the bike.
Everybody is ignorant, only on different subjects - Will Rogers
Do not do to others what you would not have them do to you - Hillel
If you can't be knowledgeable, be certain