Made of genuine horsehair, this is a handcrafted chin strap that can further secure the fit of your hat. It is made to attach to almost any Panama, straw, or wool felt hat that contains a stitched-in sweatband. Simply slide the metal pins between the stitching of the sweatband and the inner hat, on both sides. Material: Genuine Horsehair - Easy installation. Caution: Follow the included instructions carefully to prevent any damage to the hat or sweatband. - Should fit onto almost any straw Panama or felt hat. - Securely keeps the hat from falling off. *Note: Chin strap only. Hat not included.