This is one of several variants of this chair, several on discount. This one reduced from $549 to $499. It has been cheaper (lowest $449 according to pricehipster).
I list this one as it the closest version to those sold in other stores. The other variants have reduced features.
As far as I can tell the "High Back" version with aluminium base appears very similar to these, but I'm not sure if identical (or a clone, or from some country with size tweaks, or some other differences):
- https://www.btod.com/eur-ioo-mesh ("Eurotech iOO Mesh")
- https://ergohuman.com.au/ioo-high-back-ergonomic-chair ("IOO High Back by Ergohuman")
- etc searching for "Ioo Chair"
Link to all variants https://www.mydeal.com.au/brands/ergohuman
This old post has lots of useful information and comments on these chairs variants - https://www.ozbargain.com.au/node/677360.
I find it hard to get reviews on this chair. There's many subtle variants. It's not as well reviewed as the $1000+ tier.
Important to check the warranty on office chair purchases.
http://ergohuman.com.au/warranty/
3 Years standard