Multifunctional Stars & Stripes Headwrap can be used in a variety of ways. including as a skullcap. face mask. and much more. Whether worn on its own or under a helmet. U.S. flag headwraps aid in protecting your head from the sun and absorbs sweat. The American skull caps provide a great way to keep your hair out of your face while performing a variety of activities. including military-style training. hunting. digging. and riding a motorcycle. Made from lightweight woven cotton material. each patriotic biker cap is one size fits most.