We have 4 children ages 6 and under and live in a very sunny area.  We have tried a ton of hats and this one is working great for our 2 year old twins.  It is easy to put on, adjust the size and keep in place with a chin strap.  These hats have become the twins favorites.  We have not tried to wash them yet, that is always the trick to discerning if they will last long.