Polyester, well-made, breathable and lightweight Best fit for 21.5"-23.3" head girth, 3.2 inch wide brim for sun protection Adjustable string on hat back for comfy fit and chin cord with toggle for windproof Airy mesh crown band, make you more cool and comfortable Great for any outdoor activities like fishing, hiking, camping, go to travel, hunting, gardening and so on Home prefer pop outdoor sun hat for mens womens is well-made, lightweight and breathable.The wide brim hat can protect you from the sunburn while airy mesh crown can make you cool all the time.Great for any outdoor activities like fishing, hiking, camping, go to travel, hunting, gardening and so on.Various colors, unisex design.You're worth it!