I have this pair of jeans in a blue but in the size large and they’re too big. So I went with medium on these in the white and they’re just a touch snug on me. I’m in between a medium and large in their jeans, it seems. But thats okay! These still fit and most importantly they’re comfortable. They are non-sheer, too. Which is rare with a white jean! I’d say they’re a generous but TTS fit. I'm in the large of the sweater, but it runs big a medium would fit better.