Eastpak Padded Pakr Backpack for $44.90 including shipping at Rushfaster
The Eastpak Pakr specifications:
size 39 x 30 x 18 cm
I´ve checked the prices at other retailers, closest I´ve got was Asos, who usually has the bag for $48.18 (at the time of this post they were out of stock). Urban Velocity got the same bag for $69.55, and at Strictly BMX it´s going for $83.99 (all including shipping).
Rushfaster has several models of Eastpaks on sale until 18.00 Sydney time, 1st August 2013.