In reply to pancakeandchips:
The best heavyweight womens belay jacket currently on the market is the Fjern Husly, but I think it's being discontinued and the last ones were recently sold. They were selling for £80 on SportsPursuit so you can imagine why. I'd hunt around and see if I could find one from a third party.
There aren't really any other women specific heavyweight synthetic belay jackets around. Black Diamond Stance is rubbish these days using really shoddy materials, and any of the other brands aren't true heavyweights (Patagonia Das is 133+40gsm in the body, for comparison in the body Fjern Husly is 170+190gsm).
https://fjern.equipment/catalog/product/view/id/1820653?click=eyJxdWVyeSI6M...