100% Cotton MATERIAL — Made of 100% cotton. Soft and durable. It is unisex. Well packaged as a perfect gift for your families, friends, and lover. Classic basic design and vintage washed look. No need to worry about the differences in style between men and women SIZE — Adjustable metal buckle back closure and unstructured soft crown, fit to 21.2-23.6 head circumference. One size fits all. ABOUT THE SMELL — We have improved the production process of the hat since September 2018, so there will be no hats with the smell like cigarette smoke now – we promise. BREATHABLE — Eyelets on its top for ventilation to accelerate sweat evaporation when doing outdoor activities, such as fishing, climbing, hiking, walking, running, boating, going trip and so on. 30 DAY MONEY BACK GUARANTEE — All customers enjoy a 30-day money back guarantee, you have no risk to try. If the hat doesn’t meet your expectation, just contact us directly and we will provide you the best service after the sell.