Authentic replica of British police past, the Black British bobby Helmet. This hat will make you feel like tromping through any nearby field or woods with bayonet attached. Made of 100% polyester and crown measuring 5" deep, brim 1 1/2" to 2" wide, it is embellished with a satin band and authentic, adjustable faux leather chin strap that can be worn up on the brim or under the chin.