I ordered a size 4 for my 3.5 year old son who is 32 pounds. it was a bit big for him but I just rolled up my sleeves because he looked great. Everyone commented on how good he looked in his Hawaiian shirt, which also matched his sister's dress.
The Good Day Lab Clean Shield: Ultimate Comfort and Breathability in Tagless 4-Way Stretch Polo
43 Review
Van Heusen Sleeve Dress Poplin
42 Review
Star Wars, Marvel, and Disney Short-Sleeve T-Shirts for Boys from Amazon Essentials
50 Review
Boys 3D Graphic Hawaiian Aloha Short Sleeve Dress Shirt Tops with Button Down - Sizes 2-8 Years by Uideazone
47 Review
Waterproof Cozy-Dry Rain/Snow Pants for 💧 Kids by JAN & JUL, with Fleece Lining
64 Review
Arctix Youth Pants Reinforced: Large Boys' Clothing for Active Adventures
46 Review
Boys' Adidas Active Sports Tricot Athletic Clothing
45 Review
👖 Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
47 Review