The yellow shirt is light and thin - summery and beautiful. The gray shirt is thicker, but also very beautiful. If you're ordering a specific color and choice for a party like I did, make sure you order enough time for the return. I ordered 2 pink "Please" shirts and got 2 yellow "Big Girl" shirts instead. Didn't have time to return so I used it but was disappointed. But the kids didn't mind and I think that's fine.
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