The Tula Lifeguard Hat needs more daring company than lounge chairs and water wings. With a wide 5 brim providing 50 UPF protection it may not save your life, but it will save your day on the water. Handy nylon chinstrap lets you secure it on your head or wear it on your back when indoors. The elastic stretch sweatband enables the Lifeguard Hat to be adjusted to fit perfectly to your head. The lightweight palm material cleans easily, dries quickly and it even floats! All Tula hats have been tested by California Polytechnic State University and were awarded the 50 UPF rating, the highest possible for sun protective gear. Reshaping is as simple as a water spritz and re sizing as easy as a trip to the hardware store! Tula recommends cutting 34 poly foam water seal at a hardware store near you into 4 6 long strips and placing them behind the sweatband for a more secure fit.