I have several pairs of NYDJ. This is the first time I've encountered the chemical smell in their black jeans (but now that it's happened to me, I've seen it in reviews for their other black jeans), but it is really bad. I can't stand to wear these jeans, and if I wash them with anything else that hideous odor transfers.

I have tried soaking in vinegar, rinsing in vinegar, soaking in oxyclean, soaking in borax, airing outside and nothing helps. Amazon will not take them back after 30 days. My advice is if yours arrive with that smell and it bothers you, return immediately. Because it's not going anywhere. And Amazon's idea of help is to tell you to call NYDJ. Their answer is to soak in vinegar and give it time. Apparently a couple of months is not long enough because the jeans still smell awful.