Some GI's used 100 mph tape (aka duct tape) to secure knife sheaths to the shoulder straps of their load bearing equipment. Looks cool, but if the sheath is upside down (looks even cooler) it is real easy to accidentally unsnap the strap and lose your blade. But even if right side up, you only have your knife (or Leatherman) with you when you are wearing your (in this case) pack. So, you set up camp, stash the pack against a tree, then every time you need the Leatherman to do something you have to go back to the pack for it. Morebetter on you instead of the pack...