Justin, Just slip the sheath onto your belt. Most people carry belt knives just behind the point of the hip. If you are right handed you will see the potential awkwardness. But as you intend to keep it in the rucksack there is no problem. I would suggest punching two holes for a retaining length of stout cord or leather. Do this just above the crossguard. The knot will snug nicely into the bevel and help secure the knife. Take your time and get a good edge. The factory certainly didn't! Let us know how it performs for you.