zip off pants........?

i stopped off at Ray's Outdoors today as i was driving along to check out some hiking shorts. Theyt had some "zip-off" pants which are basically long pants which, with a flick of the wrist with a zip, become shorts. I cant recall the brand, but it was something adventurous like "Big Mountain" or "Country Mountain" or something like that. I was basically after something rugged with a belt capability and a decent sized map pocket. (I curently wear my old cut down army greens).
does anyone else use these or something akin to them?
does anyone else use these or something akin to them?