Premium Quality Military Soldier General Captain Marine Cadet Uniform Hat. The perfect hat for costume parties, Quinceanera parties, Halloween, graduation ceremonies, prom, school dances, school plays, film production and much more. Material: 100-percent poly rayon Lining: Vinyl with foam fill 4 inches high x 11 inches in diameter Dry clean only HOW TO FIGURE OUT YOUR HAT SIZE   To figure out what size you wear, you will need to find a cloth measuring tape.  Measure the circumference of your head at the place where you would wear a hat.  Take your measurement in centimetres and choose your corresponding size. If you are in between two sizes, choose the bigger size.