Description: Quick Dry Material. Adjustable size fits most. Moisture wicking, comfortable and quick drying polyester mesh construction The Lightweight Fabric is Extremely Breathable and Absorbant to Keep You Cool. Great for running, hiking, tennis,golfing,baseball, camping... It can be used all the year round,especially for hot days. Specification: Hat circumference:55-60cm/21.6-23.6inch(adjustable);Brim:7.5cm / 2.95inch Package Includes: 1 Piece Hat