I bought a men's jacket so I'd be able to layer, and to have a longer cut. The ladies jackets seem to be cut really short and are very fitted. I'm 145lbs 5'7" with wide hips and a small fits pretty well, considering it's a men's cut. It has the loose fit I was aiming for  but it is pretty tight in the hips. I usually wear a size 6 bottoms, and I can't button the bottom two buttons. I don't mind it though, because I don't plan to ever wear it buttoned up. I'm very narrow in the shoulders, so the breast of the jacket and the arm holes are a little large. Again, not bothered, because it will give me room to put a Hoodie under it in cooler weather. This is straight up classic denim, so there's no stretch, but it's also not too stiff. It's just right.