ONE SIZE FITS MOST: Hat Circumference: 21-23 inch, Hat Height: 4.5 inches, Brim Length: 3.5-3.9 inch, Chin Drawstring Length:11.99 x 2 inch. One size is suitable for most. DESIGNED FOR THE OUTDOORS: Whether you're fishing down on the river, logging hours on the trail or tending to your garden, our sun hat will keep your head and face protected from the sun and heat. The adjustable drawstring ensures your hat stays on you. Great for Fishing Safari Beach Golf Hiking Camping Boating Hunting. SUN PROTECTION: This fishing sun cap is made of quick-drying, breathable polyester. Wide Brim, keep the sunshine from your face and neck and offer protection from the damaging rays. Water repellent polyester material allows you to wear in drizzling rain. ADJUSTABLE DRAWSTRING: Adjustable chin drawstring for fixing the sun hat, especially in windy or rainy conditions. And another drawstring behind the fishing hat is for adjusting the hat circumference to fit your head size. Includes an internal moisture wicking sweatband. Mesh crown inside keep your head cool and ventilated. PACKABLE & LIGHTWEIGHT: You can easily fold it and tuck in away in a suitcase, convenient to carry and absolutely save lots of space, great for the cruise, outdoor trip, beach vacation and the like. Also, our sun hat can regain its shape easily, but sometimes you might need the steam/ironing machine to reshape it.