Red Dot is a discount chain store in WA, and very rarely do they have anything of decent quality. This seems like a good deal.
Antler Superlight Durable suitcase, weighs only 2.1kg, official measurements 60x40x20cm (actual measurements 56 x 35 x 23 (26 expanded), so within typical guidelines for carry-on - thanks @peterd).
RRP $229, on sale for $70.
Appears to be a red colour from the catalogue, I'm not sure if other colours are available. I also can't find the exact Antler model name/number, it's not clear from the catalogue.
2.1Kg is Superlight question mark
When you only have 5Kg carry on on some budget airlines do you really want to waste the first 2.1 on your case.