I bought this mainly to wear under my daughter's uniform shirt, she is 4 years old and quite skinny so I ordered size 3-4 and it fits perfectly, I've had them twice already washed and in my case not much shrunk, i like the quality, they are very soft and light. I would recommend if you are looking for light weight shirts buy this, if your daughter is a more normal size than mine I recommend buying a size up.
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