I used to carry a general-purpose slöjd knife on my hip every day. It was held in a leather sheath I made especially for that knife. It worked well at first but quickly stretched and the knife became dangerously loose in the sheath. This was my inexperience at work, not the fault of the leather. Nevertheless, when I was on the search for a more secure way to carry my knife a couple years ago I came across Reid Schwartz’s design. His clever self-locking design was so simple and so effective...
