My son is slim, 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.
π Brix Boys Long Sleeve Tees - Optimized Clothing for Boys
42 Review
π¦ HLMBB Dinosaur Toddler Underwear Training | Boys' Clothing for Easy Potty Training
44 Review
Comfortable & Durable: Lucky & Me Noah π©² Boys Boxer Shorts 5 Pack - 100% Cotton Tagless Underwear
49 Review
π Russell Athletic FreshForce Protection: Boost Your Boys' Performance with Assorted Clothing
49 Review
Waterproof Cozy-Dry Rain/Snow Pants for π§ Kids by JAN & JUL, with Fleece Lining
64 Review
Arctix Youth Pants Reinforced: Large Boys' Clothing for Active Adventures
46 Review
Funny Guy Mugs Tearaway Sweatpants: Playful Boys' Clothing for Fun and Active Days
49 Review
π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
47 Review