Leggings run small. I ordered 11/12 for my 7 year old daughter (she is 52" and 70 pounds). They fit her, but they are very long. I ordered a dance costume, let's see how it holds up. Some reviews say they are thin but they came with a layer underneath to keep them from showing through and were thicker. So far the only problem is the size. Will update when I have more information.
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