Material : Cotton polyester FABRIC: Packable construction with moisture wicking internal sweatband, woven exterior crown band, and eyelets on sides of crown for additional air flow. KEEP YOUR HEAD COOL - Hollow out design has cooling and deodorizing properties, the sun hat is so light weight you'd almost forget you were wearing it at all! One size fits most people . head circumference is 57cm-58cm/ 22.4inch - 22.8inch . This summer sun hat is suit for most people . but it is suit for XL or above . Package included :1 piece summer sun hat