This is a great hat for sun protection and cooling. It works well with water for cooling off in intense heat. There are two cinch cords, one for tightening around the head, one for cinching under the chin when windy. Never worn, new, without retail tag. Diameter of head circumference measures approximately 23”, then cinch down to fit as needed. It’s a khaki color with silver backing and side vents for airflow. Great hat for summer outdoor activities!