Patagonia Tribune Zip-Off Pants

Patagonia.com says:
We believe good pants, like rivers, should flow freely. So we constructed these versatile zip-off pants from 4-way stretch nylon fabric for all-day comfort and effortless mobility. Our go-anywhere climbing, hiking and trekking pants, Tribune Pants have a lightweight feel, a motion-friendly gusseted crotch, articulated knees, a DWR (durable water repellent) finish and a curved waistband for a custom fit. The convertible design lets you remove the lower legs and turn the pants into shorts via color-coded zippers. Pockets include two in front, one rear (with zip closure) and a handy right thigh pocket for your small essentials. Shorts inseam is 11".