100% Cotton; size: head circumference 58-62cm,hat brim about 11cm(0.5-1.5 cm error) Adjustable chin strap, holds the hat in place on windy days;foldable,the hat can be folded up and down in various styles and in to a small one, very conveinent to carry UV protection, SPF50, perfect for outdoor activities and sports, fishing,hunting,camping, hiking and so on Hand wash in cold water This stylist hat is desgined in the shape of fishmen hat and in colorful military pattern, which can not well protect you form the sun in summer but also provide you fashion element to your daily wearing. This sun hat can be your best partner in the hot summer day when you go fishing,hunting,camping, hiking and so on.