This 100% cotton Batman Kids Dark Knight Athletic Glow T-Shirt is easily one of the coolest shirts we ever received for the Bat-children! Just look at how the image of DC Comics' Caped Crusader is made from a whole slew of bats! You want to hear the sorcery part about this t-shirt though? The Batman Kids Dark Knight Athletic Glow T-Shirt...GLOWS IN THE DARK! All of those white bats...GLOW! I really wish we got this shirt in adult sizes. If that wasn't groovy enough, the arms also have blue athletic stripes; this t-shirt is not only sporty but psychedelic! Don't get to say that many times, do you?