By reading other size reviews I'll save you some time. Buy one size larger than you normally wear. I'm tall and bought them in XL and they work great. I bought adidas and they are too big like other brands.
Waterproof Cozy-Dry Rain/Snow Pants for π§ Kids by JAN & JUL, with Fleece Lining
64 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
π Bold Pack Sleeve Active Hoodie Sweatshirt Set for Boys' Clothing - Stylish and Comfortable!
47 Review
π Moyikiss Studio: Stylish Boys' Clothing Sets with Gentleman Suspenders
43 Review
π¦ Kids Tales Little Underwear: Boys' Clothing for 3M-8 Years
32 Review
π SANGTREE Baby Boys Clothing Set: Dress Shirt with Bowtie + Suspender Pants, Sizes 6M-6Y
34 Review
Boys' Dress Pants and Shirt by Spring Notion
42 Review