I've been a 1620 user for a while now, starting with the hoodies and the utility pants. I shied away from the Durastretch because I didn't think they were durable enough. While they aren't as heavy as the Utility pants, they are far more stretchy and comfortable. In a pinch, they look formal enough that you could wear it off the jobsite and will blend in. (I went out to an unplanned dinner at a nice restaurant and actually got compliments on them). Catch them on sale - and they are comparable (or better) to any high-end technical soft shell pants - but made in the US with a company that isn't big corporate. Highly recommend these pants.