I ordered these for my three little boys aged 2, 5 and 6. The oldest are usually between a size 6 and 7. We measured them using the attached chart and found the right size. just in case and the number 7 was too big. I returned it for 6 which we have not received yet. My kids are slim but not very skinny so I'm surprised at how roomy these tuxedos are. One of the shirt collars was stained with mud. The buttons are quite elaborate, the shirts cheaply made, but the suit itself is made of comfortable material.
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