Ended up getting an Arris vest, seemed to be perty well reviewed and I could get my hands on it quickly
The thing about the Pnuma vest the heat is right against your skin. That makes it very efficient because the heat is where you want it and it is trapped under all the other layersI have the Pnuma vest - only used it once so far but it was pretty amazing. Instant heat. Search for Pnuma on here and you’ll find more reviews and info.