Zip ties, double-sided Velcro wraps, BladeTech Tek-Lok clip...but with anything, you could lose it, as others have noted. I prefer my knife to be in my pocket, but I do have a small sheath knife on my Camelback HAWG, attached with a Tek-Lok. (It's the pack I use when rappelling, too.)
WARNING & DISCLAIMER:
SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted
on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please
review the full WARNING & DISCLAIMER about information on this
site.