Material: 100% Cotton One Adjustable Size: 57-60cm=7 1/8- 7 1/2, adjustable Metal Buckle Strap.One size fits most adults, Please kindly check your head size before buy. Personalized three-dimensional pentagram embroidery. Built-in sweat belt, absorbing sweat, comfortable to wear.Keeps face/neck skin from sun damage. Classic Military caps cadet style hats.Great unisex design for both men & women.Fit for biking/hiking/camping other sports.Perfect for everyday wear in spring, summer and autumn. Washing instructions: Hand wash with cool water, not exposed to the sun, dry naturally.