My daughter is 12 years old, 1.60m tall and weighs about 79 pounds, she is so tall and thin. I bought an L for them thinking they would be baggy based on the sizing guide. They fit her perfectly and she says they are comfortable. They even passed the transparency test! I will note that they are not as tall as in the picture and are short on her (about 2 inches above her ankles). Overall we are happy with the purchase and will be buying another pair.
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