My son is 11 years old, 4'8" and 64 lbs. He is very athletic and slim. Size 9-10 fits him perfectly with adjustable waist. We went ahead and ordered more in different colors.
Boys' Adidas Active Sports Tricot Athletic Clothing
45 Review
π Bold Pack Sleeve Active Hoodie Sweatshirt Set for Boys' Clothing - Stylish and Comfortable!
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π₯ Stay Warm and Active with Rocky Fleece Thermal Underwear Bottoms for Boys
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π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
47 Review