This is the backpack I use during my trip in Australia. However, I didn’t really have the opportunity to carry it more than an hour because I was mainly on the road as passenger/driver inside a car or a van, in cities and never in the bush for a few days.
Since I’m in the Blue Mountains, I’ve the opportunity to realize a significant test. Thanks to Jamy (Dan’s friend, my host from Couchsurfing), I did a two days packrafting trip in the Blue Mountains.