Womens Sun Straw Hat Wide Brim UPF 80 Summer Hat Foldable 。7\"-4. Sun Hats\' Two Sizes to Fit All :There are two sizes are offered for the beach hat for women; Size M-L is recommended for normal head size with a head circumference around M-L:21.6\"-22.4\" and Size L-XL is recommended for large head size with a head circumference around 22.4\"-23.2\";And the summer packable hat is easy to reshape as well after foldable;To know more details about hats, please read the brochure coming with your hat in the package; Adjustable chin strap: the womens wide brim floppy hat comes with an adjustment strap which can help to bring a cozy fit for you; Adjustable chin strap holds hat in place, even during windy day; An inner sweatband to help wick moisture away and ensure your utmost comfort; Foldable and Packable;this floppy beach hat is perfect for folding up and throwing in your beach bag or suitcase, so the summer hat is super convenient to carry,and in this way you save lots of space; Pair it with a floaty sundress and strappy sandals or cropped wide-leg pants and T-shirts-top you off in style; It comes in a variety of colors for your choice; Great for beach,vacation,camping,gardening,etc.