We purchased an iplay sun hat at the beginning of the summer which our daughter wore pretty much every time we were outside and swimming. Unfortunately that hat started to get floppy and lose its shape. We were excited to upgrade to this Outdoor Research Kids hat and are really happy with the quality and shape of the hat. Like most of the other reviews I can't not stress enough about making sure you order the right size. The hat does have a way to adjust, but with the brim of the hat being stiffer when you tighten the hat it causes the brim to distort and then does not fit as well. We measured our daughters head and she was at 48cm. According the the factory sizing this would be between the xsmall and small. We decided to get the small, which is 51cm, thinking that it would be perfect. We were amazed at how much 3cm could make... we love the hat, but can't wait till she grows more in to it.