ella I am a 10 in most places, and mine are a 27, so unless they’ve changed them - mine are from last year - I would say they come up big. However I ordered the cord ones and had a feeling they might come up smaller. I needed the 28 in those (but didn’t like them anyway). I have the black, light blue, and navy in the jeans. If you look on ASoS they have some there and frequent discounts. (There are pics on my insta of them on if you scroll back a bit.)