So I think it's the perfect size for my 5 year old with a little more room but they are relaxed and just what we need. Well material wise I feel like they have a little over 5% spandex, it almost feels like 70/30. But they will still work and they are true to size. My son sometimes gets a little confused about how to put them on because there's no tag inside, but it's just a learning curve.
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