I'm glad I read the reviews. My daughter is 6 years old and wears size 1.5. I bought the big ones (9-12 years old) and they fit well. They stretch a bit and go well with boots. I would say they go up to a size 3 unless your child has a wide foot.
Pros
GOOD GIFT IDEA: High quality wool socks are a great gift idea to choose for your daughter, little girl, boy for birthday or Christmas.