Same system i use, works well, costs nothing, nice to be able to grab/stow without stopping. Used my Durston pack for first time last night, like it a lot, looks great, nice carry( only 4 miles with about 8kg). Shoulder straps are set quite wide, i have to use chest strap to get them to sit right. Main compartment quite narrow,v build quality great, liked side pockets especially big one with the zipped section, shame no mitten hooks anywhere, no drain holes in big side pockets, and just cant understand why strap pockets wont take a phone in a case or a 500ml bottle. More robust than my tired OMM 32 and just the right size for my needs, so is a keeper