The sheath is very hard to describe in text, it's a complex and unusual shape. It's thickest point is very small, and that's less than a half inch thick. Most of the sheath is far thinner than that. There's a pretty good picture of it from a few different angles on-line at:<br><br>http://www.crkt.com/stifkiss.html<br><br>There is a seperate piece, a hard plastic flat sleeve, that can be screwed to the edge with two supplied studs to allow a horizontal carry.. but the sleeve is not centered over the knife this way, so at the side the handle will stick out. Might work carried across the back like a seax.<br><br><br>