I really don't like ordering clothes by my kids' ages but I think my son should be a medium size because I ordered by his height 10 years old and the shorts fit him. He says they're a little larger than his other trunks, but they're just the right length and have an adjustable drawstring and elastic waistband to make them work. He really likes the design and he likes the feel. He said the built-in underwear feels great. And of course they have pockets, which is always a plus.
Platinum Rashguard for Boys by Kanu Surf
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π Kanu Surf X Large Boys' Swim Rashguard Sleeve - Premium Protective Clothing for Swimming
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π©³ Beautyin Toddler Boy's Swim Trunks: Printed Swim Shorts for Quick Dry Beachwear
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LUCOWEE Anti Chafe Boys Swim Trunks: Boxer Brief Liner & UPF Quick Dry Technology
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π Fruit of the Loom 6 Pair Cushion Ankle Boys' Clothing: Comfy and Stylish Selection for Active Boys
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Arctix Youth Pants Reinforced: Large Boys' Clothing for Active Adventures
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π Bold Pack Sleeve Active Hoodie Sweatshirt Set for Boys' Clothing - Stylish and Comfortable!
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Boys' Adidas Active Sports Tricot Athletic Clothing
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