A reader wanted to know where she can get some straight cut jeans the other day, she said that she's really thin so they will look loose on her which is great but I just don't like the straight look unless the top is well below the knee - this is simply my opinion. So anyway, I'm not going to direct you to straight cut jeans but this website is great for reduced, loose, hijab friendly jeans which I love. Here are a couple I like:
They are from this website. Hope that helps!