The Pack Tac is a lightweight, useful, and effective companion to have on the trail.  Designed to mount vertically on many backpack straps, it's close by when you need it, but lightweight enough to not even notice it's there.  In addition to the knife, the Pack Tac includes a fire starter and four feet of paracord should you need them.  It can also be worn horizontally on the waist or set up to wear around the neck.