Perhaps pertinent to those able to reach a storeAushiker wrote:The search continues ... came across UniQlo and their Ultra Light Down jacket today. They have a presence in Australia so for some you could see the jackets in store. BPL, Bushwalk.com.au and Reddit seem to be positive about these jackets which are sub 300 grams from what I can found out and really really price competitive at AU$119.90 and possibly cheaper again via eBay.
Uniqlo Men's Ultra Light down Jackets - $39.90 (RRP $119.9) [in-Store Only]
https://www.ozbargain.com.au/node/293257