Running Hat by Zero Limits | Lightweight, Moisture Wicking, Mesh, Sweatband | Bringing comfort to a new level MATERIAL | Special high quality durable material that will last, and feel great on your head. FEATHERWEIGHT AND COMFORTABLE | Never worry about your hat weighing you down on your head. This hat is made with featherweight materials. The unique internal mesh lining enhances the airflow around your head. Keep the sun out of your eyes with the 3" long bill. This hat is so lightweight and comfortable, you'll almost forget you're wearing it. VERSITILE | Excellent for a wide range of activities, from Running and Jogging, to Tennis, Golf, or a day at the Beach. ADJUSTABLE | The adjustable Velcro strap allows for easy and fast adjustments to the size. Will work great for people who wear hats with a ponytail. This one size fits all hat will fit sizes up to 7-5/8. Will fit great for child and adult sized heads. EASY CARE | Because of the lightweight materials used in shell of this hat combined with the mesh lining, it will air dry very quickly. Machine wash with like colors and air dry.