My son is 9 years old on average. The middle one fit him well, he just outgrew the size of the small one. I wish they made more cotton/spandex underwear, my son prefers this material over polyester/spandex. Most of the time he just sleeps in it.
Comfortable & Durable: Lucky & Me Noah π©² Boys Boxer Shorts 5 Pack - 100% Cotton Tagless Underwear
49 Review
π Brix Boys Long Sleeve Tees - Optimized Clothing for Boys
42 Review
Pack of 6 Baby Soft Cotton Underwear for Little Boys - Dinosaur Briefs, Toddler Shark Undies, Children Truck Panties
41 Review
Comfortable & Practical City Threads Underwear: Sensitive-Friendly Boys' Clothing
47 Review
Funny Guy Mugs Tearaway Sweatpants: Playful Boys' Clothing for Fun and Active Days
49 Review
Waterproof Cozy-Dry Rain/Snow Pants for π§ Kids by JAN & JUL, with Fleece Lining
64 Review
π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
47 Review
π₯ Stay Warm and Active with Rocky Fleece Thermal Underwear Bottoms for Boys
44 Review