Packable: foldable and packable for travel to your favorite destination Breathable: perfect for beach and resort vacation; also great for summer activities such as boating, biking, hiking, gardening or simply sitting by the pool Brim: measures 3.5" Which not only looks stylish, but is wide enough to shade forehead, eyes and ch from harmful UV rays Adjustable head size: integrated internal drawstring allows you to size this hat for your perfect fit Rated UPF 50+ which means this hat has maximum UV protection, blocking at least 99% of UV radiation. A brimmed hat offers the necessary protection for your ears, temples, ch and neck.. 100% Toyo Straw Fiber