Just came across these 3 packs of Polo Ralph Lauren trunks for $29 (normally a ridiculous $99). 20% off in cart reduces to $23.20. $10 shipping, but if you have a David Jones card that becomes free. Add in 8% Cashrewards and this ends up $21.35 (or $31.35 with shipping). Still a third of the retail price even with shipping. Enjoy!
A few different styles and colours, but not many sizes left (S, M, XL) depending on style:
https://www.davidjones.com/Product/21000792/3-Pack-Trunks
https://www.davidjones.com/Product/20999696/3-Pack-Trunks
https://www.davidjones.com/Product/20997214/3-Pack-Trunks