Small size FOR SURE! I had a premonition so I bought 2 sizes and the larger one fit. just for your information. My son is 11 years old, usually 10-12. (very average build for his age) He ended up wearing a larger size. My other son is 12 almost 13 and VERY skinny (waist and legs) and both sizes fit him.
π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
47 Review
Funny Guy Mugs Tearaway Sweatpants: Playful Boys' Clothing for Fun and Active Days
49 Review
Boys' Adidas Active Sports Tricot Athletic Clothing
45 Review
Waterproof Cozy-Dry Rain/Snow Pants for π§ Kids by JAN & JUL, with Fleece Lining
64 Review
π Moyikiss Studio: Stylish Boys' Clothing Sets with Gentleman Suspenders
43 Review
Boys' Dress Pants and Shirt by Spring Notion
42 Review
π SANGTREE Baby Boys Clothing Set: Dress Shirt with Bowtie + Suspender Pants, Sizes 6M-6Y
34 Review
π Burgundy Boys' Clothing: Nwada Suspenders for Dapper Young Gentlemen
33 Review