This fun Blue & White Reversible Sun Hat from Banz is clinically tested to Australian Standards for Fabric UV protection & has a UPF (Ultraviolet Protection Factor) rating of 50+. It will block out more than 97.5% of UVA & UVB Rays, protecting your child from the harmful effects of the sun's rays. Other features include a velcro adjustment at the back to ensure a snug fit, & a wide brim to shade the face & neck. Whilst the poly cotton blend ensures excellent comfort, coolness & breathability.