I have bought two of these hats for my now 2 year old, the first when he was a small baby. They are good quality, stand up to a lot of hard wear and provide the best sun coverage of any hat I have seen for kids.

My only complaint is that the smallest size runs big, it didn't fit my son (average head size) until he was 1 and even then it was big until about 18 months when it fitted. So this hat will not work for your newborn or even 6 month-old.

Also the sizing on amazon is quite confusing because the separately list out sizes "Child" and "24 month" and show different stock for each. If you go to the Sunday afternoons website you can see there really are just 4 sizes.