Come and see our amazing products.Hat made of polyester cotton with dome and adjustable shoulder straps. Circumference: 21.16-24.4 inches. Edge: 3 inches. Crown: 4.3 inches. The low profile, vented design increases the breathability of the hat, making it comfortable to wear all day. Our adjustable retro hats are a great choice for everyday activities and outdoor activities, especially hiking, fishing, running, baseball, cycling, golf, tennis, and more. Pls confirm further with us if any query about packing info, inventory status and time schedule.