Great price for Osprey Farpoint 40 Jasper Red only in both sizes - S/M or M/L. Free delivery for Australia. You can save $20 if you sign up as new user and use code NEWAU to bring price down to $103. These are great and are within carry on size limits. They open up like a suitcase so handy for travel.
Osprey Farpoint 40 Jasper Red Rucksack $123 Delivered ($103 for New Customers Using Code) @ Wiggle