Aerostich Kanetsu Windstopper, $317 USD / $424 CAD on the Aerostich website.
Aerostich says:
Electrify any jacket’s performance with a Kanetsu liner. Closely patterned after the standard Aerostich Darien liner, this electrically heated version provides an under-jacket environment that’s always a lot warmer than the outdoor ambient. Enjoy a cozy micro-climate which can be up to 30º warmer than outdoor ambient.
Three heating circuits provide warmth through the sleeves, body and collar. The sleeves use a slightly ‘hotter’ heating wire due to the liner’s slightly looser fit.
This liner is reversible for all wearing situations and features a built-in self storing pocket, a convenient cord storage pocket, and a lighted on/off switch on a coil-cord. The WINDSTOPPER® fabric shell blocks drafts 100% and packs down nicely for storage.
Item no. 10643. Size 48. Blue fleece side and Black windbreaker side. Good condition. $149