So personally I find this extra bag, pretty face (totally optional but its actually fun) and good size, strap hangers (pectoral level and hips) are well done and are not unpleasant, even with the weight on the back, it is perfectly distributed. Moreover, and this is rare enough to note: I was pleasantly surprised to find many things in addition: It is compatible with the pockets of hydration (mean by that their use was provided by the manufacturer, specific space in the bag, outlet for pipes, convenient to avoid having to pass by a zipper ... etc), a very useful thing for boarding a good amount of water with you, and accessible in the moment. The protective cover against rain is integrated into the bag, I mean it's a pocket of her own, so the thing will not be in contact with the gear after using it served. The aluminum bar (* 2) for the bag stiffened, optional course. It is supplied strap settings / tightening / adjustment, and must: directory you can adjust the height and the straps easily premium, Grace scratch an ingenious system to see it in time this is unlikely to weaken ... even if it seems really solid and well designed. As against the bottom front pocket off of a truly pocket separate from the main pocket, although it is possible to create a separation, with the system integration and equip a tightening cord. A happy man.