If you want a women's jacket that MOLDS to YOUR body whatever your shape - definitely check out the Astral Abba. The fill is natural kapok which is AMAZING. Standard foam just doesn't compare. The Abba was the vest I ended up buying. The fill kind of feels like a dense rubbery lumpy pillow - you really do have to feel it to understand. I would suggest that before you buy the WonderJacket you check out the Abba. The Abba is even less expensive @ around $100!
I would give it a 10, but the adjustment straps take a bit longer to mess with than my older Extrasport. However, the Astral stays in place and I can breathe when it's snug. The Extrasport crushed me and still rode up.
If you're a big lady, you'll breathe easy with the Astral Wondervest. :)