Have many pairs of 5.11 pants.
They are great. I have at least 10 pairs. One of the local uniform shops closed them out for $20.00 or so and I bought several more. I have them in black and tan and green. They are great and the internal knee pads work well on the range. Most people are not aware of that feature. The pads do not come with the pants you have to pay extra for them. They have a deal once in a while where they come with the pants and the last time they did that I bought 2 pairs and both came with pads. You can make your own from old mouse pads as that is the same material that the company makes them from.
I like the big back pocket opening as it is easy to get into when you have a pack on or other gear. I carry a folding knife there most of the time as well.
The small pocket on the side is good for a monocular or cell phone.
They tend to fade in color rather fast in black is the only concern.