It would appear that the Australian Cotton "limited editions" wasn't just a branding thing, as they only have a few of the designs left on their site and they're listed under 'last chance'.
They now seem to be selling "cotton rich" shirts that are part polyester. No thanks, I'm a sweaty mess.
I liked their designs and colours (usually decent vivid purples, blues, greens, that were fun but also mostly white so acceptable for business wear), and they fit well. Most importantly, they were $20 each and 100% cotton.
Any suggestions for where I can find something similar? I regret not buying everything they had - I was new to the country at the time and assumed they'd sell them for the foreseeable future.
Costco sell great quality shirts around the $25 to $40 range. Sign up buy the clothes and few weeks later ask for refund on membership if you think you will not use it again