Created by New Era with a special nod from Tony Stark comes the soft one-size-fits-most Iron Man Arc Reactor Black New Era Beanie! Made from 100% acrylic, the Iron Man Arc Reactor Black New Era Beanie features the Arc Reactor design Tony figured out because his first design was kind of killing him. Suppose that is the creative process, right? Either way, you'll stay warm should you ever find yourself thrown out onto the street by Guy Pearce.