This flat cap is made of soft cotton, lightweight, thin, breathable, and will not be stuffy. It is great to fit most head sizes. Recommend head circumference: 56-59cm. The classic look and casual style flat cap make it easy for you to match with your different clothes. The lightweight cotton fabric is perfect for summer, fall, and spring, and a pre-curved visor keeps the head away from sun rays. It can be considered as fathers day, your husband’s birthday, or a gift to your friend, share it with the one you love. Great for daily and outdoor activities, driving, fishing, hiking, and golf.