How do you get creases out of hat?

To remove creases from a hat, you can use steam. Hold the hat over a pot of boiling water or use a steam iron, keeping it at a safe distance to avoid damage. Gently reshape the hat with your hands while the fabric is damp, then let it dry in a proper shape. Alternatively, you can fill the hat with a towel or soft material to help it retain its form as it dries.