My DD is very small and slight, she is 3.5 and wears age 2-3 clothes. Does anyone have any suggestions as to which brands would suit her best? She is very slim, and skirts are out, and all the leggings she has been in this summer have hung off her waist. They have been mainly Next / Sainsburys / Mothercare. This hasn't been so much of a problem up till now but it seems to be getting worse! Help!