90% Paper straw,10% Polyester Made of 90% paper straw and 10 % polyester. Straw material. Soft comfortable and breathable to wear. Two Size for your Choice: Head Measurements: 56 - 58cm/22 - 22.8inches or 59-60cm/23.2-23.6inches,brim Measurements:7cm/2.8 inches.You can adjust the size of the hat through the adjust band inside in the hat. Foldable and packable:it can be easily carried inside your handbag or beach tote, packable and convenient to carry and absolutely save lots of space. Cute and lightweight,breathable and comfortable for the hot summer weather,a wonderful hat for wearing while gardening, at the beach, pool, park, camping, hiking, race day events, even out in your own back yard or any outdoor activities. An essential accessory for your outdoor travel,holiday,beach playing. folding packable design for easy storage in a handbag or backpack when it is not in use. Convenient carrying along Package Included: 1*Hat