I bought a size 5/6 for my only son aged 5, 2m. They were skin tight and he is 70% (95% height) for his age group. Hanes shirts fit much better. Be sure to add weight if your child is over 50% of their age.
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👕 Brix Boys Long Sleeve Tees - Optimized Clothing for Boys
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Comfortable & Practical City Threads Underwear: Sensitive-Friendly Boys' Clothing
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