I first bought a size 8 as a gift for my grandson's 7th birthday. That size wasn't even close! More like a 5. He's tall for his age, but the first pajamas were small. I exchanged it for a size 10 for free and it fits great.
VAENAIT BABY Viscose Toddler Pajama Set - Short Soft Shirring Cool Sleepwear for Boys and Girls, Ages 12M-12Y - 2pcs Set
48 Review
Enfants ChΓ©ris Toddler Pajamas: Warm Cotton Pjs for 24M-6 Year Old Girls Boys
50 Review
VAENAIT BABY Kids' Soft and Comfy Modal Tencel Sleepwear Set for Boys and Girls - 12M-12Y, Shirring Solid Pajamas
46 Review
Amazon Essentials Snug Fit Pajamas - Stylish Boys' Sleepwear & Robes Collection
44 Review
Waterproof Cozy-Dry Rain/Snow Pants for π§ Kids by JAN & JUL, with Fleece Lining
64 Review
Boys' Adidas Active Sports Tricot Athletic Clothing
45 Review
π Fruit of the Loom 6 Pair Cushion Ankle Boys' Clothing: Comfy and Stylish Selection for Active Boys
57 Review
π₯ Stay Warm and Active with Rocky Fleece Thermal Underwear Bottoms for Boys
44 Review