Purjoy Sun Hat Quick-dry Outdoor Fishing Hat Versatile Beach Hat with Chin Strap Fabric:Polyester; Hand Wash Head circumference:21.5~23.5in.The drawstring in the back of the hat makes it easy to adjust the size. Brim:2.95in,built-in sweat band,mesh vent on sides for cooling and airflow. Lightweight sun hat folds and packs away easily to save space during travel. The hat is suitable for hiking,camping,climbing,hunting,fishing,tourism and other leisure outdoor sports.