Baleno Chatham Gundog Training Vest
Dobby fabric : 85% polyester + 15% polyamide with 100% PU laminate
At a 12, this is true to size - assuming you want to be able to fit a thin fleece under it and still have room to fit a couple of dummies in the back. It isn't going to fit lots in the back pocket, but if you're looking for a smart outfir for working tests, this is perfect.
It is probably suitable for ladies up to 5'9 - I found it a touch short at 5'10 (but I was being really picky to come up with that!)