I am so impressed with this backpack from day one. It's the right size for an everyday pack.  There are some many features to this backpack, but one of the coolest is a camel pack holder and a hideaway spot for the mouthpiece, so nice!  It's so comfortable as the chest straps open big enough, so it doesn't restrict your breathing!! Some other things that impressed me as the size of the bag is bigger than some but doesn't feel it or heavy which is amazing.