After posting what was generally a glowing review of the Gap Authentic Fit jeans a little over a month ago, the honeymoon period has ended and I would like to follow up with this caveat/complaint/advice. If you are thinking about purchasing these jeans, I would highly recommend going down at least one size.
I tried these jeans on in my normal waist size at the store they fit so I bought them (being a man, that is about as much information as I want to obtain in a dressing room). Upon trying them on at home (after removing the tags), I realized that while the rest of the jean fit well, the waist was actually at least an inch too big. I had missed this because all of the excess material was in the back and when I tried them on, I guess I hadn't been looking for it. I figured that the jeans would shrink a bit when I washed them and it wouldn't be a problem anymore. Well, I did wash them and they did shrink a bit, but once I started wearing them, the waist stretched back out to its original size, and since then, the thighs have stretched a good bit too. I had breakfast with my friend who works for Gap this past week and mentioned the problem to him and he did admit that Gap has had problems with their denim stretching more than they want it to. While that might be part of the problem, I think that it is also vanity sizing on the part of Gap, which I find kind of annoying. If anyone from Gap corporate is reading this and would like to provide me with a new pair of jeans, in the correct size, I'd really appreciate it.
Other than the sizing issue, I have still been pleased with the jeans after a month and would still recommend them. Moral of the story: size down. They will probably look pretty tight when you do, but don't worry, they'll end up looking alright after a couple of days.