The mounting options on backpack hanging from the construction of the length and width of the arm. In "real" backpacks with wide strap, the clip for fixing is not wide enough for simple backpacks of Klip goes around but in severe camera tends to slip the whole. In some packs, there is the upper part of the belt a fixing ring or a compression band is at a suitable place is available. Just trying.
If you have an attachment found, the belt is also at a very short setting a bit too long: the camera - in particular a heavy SLR - waving in front of his stomach when not installing an additional attachment that prevents commuting.
Nice idea, not particularly clever implemented. For cyclists completely unsuitable.