I bought a medium size which says it fits American boys ages 7-10. I bought these for my older 5 year old grandson who wears about a size 8 and they are too tight. My other grandson who is 6 but is very small and true to size even thought they were a bit small but he says they are fine.
π¦ ViCherub Boys' Black Large Underwear - Pack of 3 | Boys' Clothing Collection
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