It's incredible how small this packs and how much it holds. I carry it in my Matador GlobeRider 35 when travelling and if needed, I have the additional capacity of 55L to bring back home all the excess purchases. It's very convenient how easily it fits packed inside the backpack and frankly incredible how much it holds.
4 stars i/o 5 because it offers no shoulder straps and the zippers are not lockable, they are strings that can easily be cut with a pair of scissors.