According to the company that sells swimwear on our swim team, you need to measure the boy's waist to determine the size of the swimsuit to order.
I think we ordered 28 for my six year old who is a little heavy (husky clothes are too big but regular clothes are a little tight). It has a durable feel and the bright color makes it easy to find in a bag.
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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Boys' Adidas Active Sports Tricot Athletic Clothing
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π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
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