The 95% polyester 5% spandex Iron Man Arc Symbol 39Thirty Cap will get you into the Stark Expo for 50% off! It's like bringing an empty soda can to certain amusement parks. I always just assumed they were super into recycling! Conceived by those runaway geniuses over at New Era, the Iron Man Arc Symbol 39Thirty Cap is available in three different fitted sizes and shows off a raised and sparkly Arc Reactor symbol. Be careful though...Jeff Bridges might try to snag this from you! He's a wily hippy mind you.