Have fun in the sun in this Hat Attack Canvas Packable Hat in White. This Canvas Packable Hat by Hat Attack features measurements: crown height- 3.5", brim- 4.5", head measurement is 57cm, built in upf protection. This Hat Attack Canvas Packable Hat is made of Material: Stripe– 100% Cotton; Solid– 55% Linen / 45% Cotton; Lining – 100% Cotton Poplin. Dry Clean Only.