My little kids wear underwear in one size 5 and 7, and while superheroes, dinosaurs and sharks LOVE to wear "Just like Dad" underwear. They are very stretchy with spandex in the material and are perfect for both boys (45-50lbs). All 5 packs are in "dad colors" and they walk around in their underwear. The spandex in the material prevents fading and I wash with like colors.
Comfortable & Practical City Threads Underwear: Sensitive-Friendly Boys' Clothing
47 Review
πͺ 3T Boys Training Underwear: Comfortable and Durable Toddler Underwear
41 Review
π Russell Athletic FreshForce Protection: Boost Your Boys' Performance with Assorted Clothing
49 Review
π Brix Boys Long Sleeve Tees - Optimized Clothing for Boys
42 Review
π Fruit of the Loom 6 Pair Cushion Ankle Boys' Clothing: Comfy and Stylish Selection for Active Boys
57 Review
Funny Guy Mugs Tearaway Sweatpants: Playful Boys' Clothing for Fun and Active Days
49 Review
π₯ Stay Warm and Active with Rocky Fleece Thermal Underwear Bottoms for Boys
44 Review
π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
47 Review