This is a one size hat but it fits great on my toddler's big head. I find that it fits best if I get it wet first. My toddler seems comfortable in it after we get it wet and she will wear it the entire time she is in the pool and at the pool side.  She wears it every day.

I live in Miami, where the sun shines most of the time!!  This hat covers my daughter's head, neck and ears.  She does not mind it (she is only 10 months old and is sometimes fuzzy about hats).  I am happy with the spf properties and would consider buying in bigger sizes as she grows.

I thought I must have erred and bought a baby size but no. This hat is great ... but for a baby or toddler. It was much too small for my 4 and 6 year olds.

Stretches for good fit.
Adorable
Lightweight material
Protective of her little head.
Will fit for a good while!!
Great for infant and toddlers

This is a well made attractive and fun hat for kids.  Fabic is perfect for active toddler who likes to be in and out of the water.   The one size fits all may not work for any child older than 18 months.  Kids hate tight things on their head.

The picture was kind of misleading. I thought  it would cover my 3 year old son's whole neck, but it barely covered the back of his Head!