Dumb, ignorant kydex question in Sheaths and Leatherwork Posted January 12, 2012 I haven;t used kydex much, but i have used it enough to know that rivets seem to work best for me. I have also saddle stitched it in once instance. I didn;t account for a very thick blade well enough and the rivets would have rubbed on the cutting edge, so I stitched the entire edge. This particular sheath is for a machete style camp knife. it's far too heavy for daily use, but works well for camping trips to split small wood pieces for fires, and what not. I drilled the blade to lighten it a bit, but it's still rather heavy. I ground this out (pure stock removal) while heat trating a sword.