Our Kamryn classic panama style hat is made of 100% wheat straw and is finished with a genuine leather band. Bonus: You can customize the fit using the size adjuster hidden in the sweatband under the label. Kamryn has a crown height of 5in. and a brim length of 4-1/4in. This hat is one size fits most. It is 57cm with a size adjuster hidden under the label that allows you to size down.