Bought this travel pack for a 2 week trip to Italy (from the US). I was able to pack my electronics, camera and paper work in the backpack. In the detachable duffel bag were 2 pairs of shoes, 3 pairs of pants, 5 shirts, 5 pairs of socks/underwear, 2 hiking sticks, 1 rain coat and 1 light weight jacket. The total weight was under 30 lbs and it was a breeze to carry. Note: I am overweight and 50+ but the ergo dynamics were wonderful. Having the ability to adjust the length of the bag, shoulder straps and belt all made this very flexible. Detaching the duffel bag and backpack was a breeze. I got very good at it when traveling via train or plane. I have only 3 points I was not happy with. The 1st was the ability to have a water bottle in the backpack while the cargo bag was attached. The good thing was when together the clasps pull the cargo bag portion close to the backpack which means it is close to your back. However it also means that a water bottle does not fit in very easily when the 2 parts are together. The 2nd drawback was the ability to get into the backpack while the cargo bag was attached. You also always have to undo the load lifter on the shoulder straps to get inside the backpack. The last complaint is the chest strap (the one between the 2 shoulder straps) got detached and lost. Some where during my trip it got detached on its own and was lost. The good news is Osprey is replacing for free.