You know, it is really hard to write the Transformer sound effect. You know which one I'm talking about...the Transformer sound effect. We tend to make(attempt) the sound effect here all of the time! The 50% cotton 50% polyester Transformers Optimus 39Thirty Hero Mesh Cap didn't really help us not making the sound effect, but those guys at New Era certainly know what they are doing! The Transformers Optimus 39Thirty Hero Mesh Cap is a great hat displaying the heroic Autobots symbol on a red body and bill, and an image of Optimus Prime on the white mesh back! Since the hat is red and white, I wonder if the Transformers will consider you a medic?