Is "Leathermen" the plural of "Leatherman"?

I was thinking for a while of all the tools that exist in this world and I decided that there is no single tool that I would be. So I decided that I would be my favorite tool in the world: a leatherman. The leatherman is the most useful tool there is. There's everything on it... It's the best. I lost my leatherman on the 210 trip, but then when I got home I found it. So I'm happy again. I guess it's kind of sad when my happiness depends upon a piece of stainless steel. But it's not just any piece of stainless... it's a leatherman.