Material: 100% cotton, breathable and comfortable, with great sweat-absorbing function, easy to carry.Fashionable and casual cap shape. Comfortable to wear all day. One Size: There is a adjustable metal buckles closure on the back. One size fits most, you can easy adjust to fit your head. Dimensions: circumference 21.65"-24.02", brim length 3.15", crown height 4.72" Both sides of the vent hole, so that a better cooling of the head. Built-in sweat belt, absorbing sweat, comfortable to wear.Keeps face/neck skin from sun damage. SUIT FOR VATIOUS ACTIVITIES: Great for all seasons and Good for exercises such as running, walking, cycling, golfing. This baseball hat is also ideal for attending sporting events, sunbathing at a beach, pool, or lake. Also, fun for fishing, boating, camping,outdoor events and baseball games. Washing instructions: Hand wash with cool water, not exposed to the sun, dry naturally.