●We have two sizes for this hat 23.6"-24.8" (60-63cm) & 24.8"-26"(63-66cm), which are suitable for different head sizes.The workmanship of the hat is exquisite, and the gray style goes with everything.Its perfect for men. ●This hat has an SPF of 50+,the brim width is 9cm.It will not block the vision, but also can easily block UV rays and prevent sunburn.The top of the hat has a waterproof coating that effectively prevents rain from seeping into your head ●Our sun hats come with breathable mesh so they dont feel stuffy and keep your head dry all the time ●The hat has a windbreak strap that holds the string under the neck to prevent the wind from blowing the hat away and to prevent it from moving or falling while exercising outdoors ●Lightweight and foldable, the hat can be carried in a bag and is ideal for everyday use or outdoor activities such as camping, hiking and fishing