I know a lot of people love knives with clips, but I've just never felt comfortable using them. If I clip them to my belt or pocket, I'm just too afraid that a swipe of my arm (or other object) will send it flying.

I like my bigger folders in sheaths with sturdy - closed - belt loops.

Also, I recently purchased the Leatherman Charge Ti with the leather sheath, and ended up purchasing the nylon sheath too. I find I like the nylon sheath much much better.