Jan & Jul kids sun hats provide the best UV protection. All our sun hats are rated UPF50+, meaning they provide excellent sun protection according to the Skin Cancer Foundation. The 50+ UPF rating is achieved through the weave of the fabric and construction of the hat. So, you can count on years of UV protection that will never fade away. Safe for babies, toddlers, and kids, with no harmful chemicals, dyes or solutions used. With lots of styles to choose from, there is a perfect sun hat for every child!