Baseball-style cap with lightweight EPP (Expanded Polypropylene) impact liner and a tough HDPE shell. Excellent airflow and integrated, moisture-wicking sweatband to keep the user cool. Large reflective panels increase user visibility. One Size Vent for Optimum Air Flow Reduced 5cm Peak for Increased Upward Vision Adjustable Machine Washable Integrated Sweatband Reflective Panels One Size Vent for Optimum Air Flow Reduced 5cm Peak for Increased Upward Vision Adjustable Machine Washable Integrated Sweatband Reflective Panels