My slim son is slightly above average height, 10 years old. He doesn't have clothes larger than 10-12 sizes, but based on reviews I ordered 14-16 sizes larger. They're a little baggy on him, which I can live with, but the sleeves are still a bit short, which is an issue. They only seem to be made for small or slightly chubby children.
Pack of 6 Baby Soft Cotton Underwear for Little Boys - Dinosaur Briefs, Toddler Shark Undies, Children Truck Panties
41 Review
πͺ 3T Boys Training Underwear: Comfortable and Durable Toddler Underwear
41 Review
π¦ HLMBB Dinosaur Toddler Underwear Training | Boys' Clothing for Easy Potty Training
44 Review
π Brix Boys Long Sleeve Tees - Optimized Clothing for Boys
42 Review
Arctix Youth Pants Reinforced: Large Boys' Clothing for Active Adventures
46 Review
π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
47 Review
Boys' Adidas Active Sports Tricot Athletic Clothing
45 Review
π₯ Stay Warm and Active with Rocky Fleece Thermal Underwear Bottoms for Boys
44 Review