These pants are pretty comfortable. Lots of movement, feel pretty durable. Pockets are large, I can see why SF would use these. I like the fact that there are no zippers - make sense, from a tactical standpoint. Haven't worn them in the field/ in training yet, but I can see them holding up well. Lightweight, so if you're going outside in cold weather, wear a layer underneath. There's enough room to accommodate for that.