“Transformers...Robots in disguise”. This officially licensed juvy kids sized t-shirt features the 80s' classic art of Optimus Prime, overlayed the Autbot Symbol. Show your support for the courageous Autobots' and buy one today! This royal blue, standard fit juvy kids shirt is made of 100% cotton. Be sure to check out our Size Chart to get an idea of the average size and dimensions of this Transformers Optimus Prime Big Rig tshirt style. Check back often for some of our new Transformers clothing and other Transformers Merchandise at great prices only at AnimationShops.com.