I chose size 3 for the following reasons: I bought size 14 because they are skinny - my son usually wears 12. Tight in some places, inside loose others. Maybe its shape, but I think it's more of a pant cut. They were quite long and a bit baggy at the waist, which I expected given the size. Overall I think they worked as intended :) and I think after washing he can wear them to play so we'll benefit from that. If your son prefers a slim fit I think they will fit.
π Essential Straight Fit Jeans for Boys: Top Choice in Amazon's Boys' Clothing Collection
47 Review
Ultimate Comfort for Boys: Lee Performance Series Extreme Comfort Slim Fit Jean
41 Review
πΆ Little Toddler Liberty Boys' Clothing from Children's Place
42 Review
Spotted Zebra Boys' Stretch Denim Jeans by Amazon Brand
64 Review
π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
47 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
Arctix Youth Pants Reinforced: Large Boys' Clothing for Active Adventures
46 Review