All three t-shirts in this set have the same kid-friendly print but differ in colour. The armholes are slightly oversized, similar to an adult muscular t-shirt. I was concerned about how they would hold up to a regular wash but while they feel nice there is no visible wear. a six year old (about 40 pounds) is in the 6D. I would say the size is right, maybe a little small. We had a dinosaur costume from this company last winter and my son loved the pants. They held up well, so I hope these shirts will hold up too.
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