I normally wear a size 9/10 in every other brand,, but kancan jeans are always tricky for me. Some have a super stretchy material content and I can get away with wearing a size 7. These showed they are more cotton and little stretch. I paid close attention to reviews on this pair. Some reviews stated that even going one size up from their normal kancan size was too tight. So I went with my gut and ordered a size 11. Perfect fit!