They don't stretch out too much if any but the denim is still more stretchy than stiff. And I find them true to size.

I have bought J Brand 14" skinnies in white and found that I had to go down in size ( 26 instead of my usual 27). This is for that particular style only.

There is a website that sells contemporary clothes, http://www.revolveclothing.com
that typically states how a certain item runs sizewise, and they do sell a lot of J Brand jeans. So I'll look at the site to see if they sell the pair you're interested in and what they say about size. Oh, and please know that the same model in different wash can fit very different sizewise :(

Thank you for the input ladies.

BTW, I've looked at revolveclothing before but never bought anything from them. Did you have a good experience?

I have bought a coat there ( my Soia & Kyo brown coat), and they were very nice.

There's always a promo code floating around for 15 % off, and for first time customer there's a 30% off, which can be quite a hefty discount considering their prices. Usually their codes don't work online, but if you call/email them after ordering they are happy to adjust it for you. Very nice customer service indeed!