My DD is 9 and is 152cm tall - she is slim and has long legs so we do struggle to find her trousers that fit on both the waist and in length. If she wears something that fits her leg length they’re falling off her, but if we get something that fits comfortably on her waist, they’re halfway up her shin/calf!
School trousers are ok as we’ve found the longer length ones in a size up with adjustable waist works fairly well but jeans/leggings etc are a struggle as they’re not so widely available in longer length.
I used to get her bottoms from H&M as they seemed to be longer legged but they’ve not been that great recently 🙃
any ideas or recommendations greatly appreciated!