I think the 100% polyester Spiderman Diamonds Polymesh Kids T-Shirt started off as a normal t-shirt but after millions of years of pressure it was turned into this fine, airy mesh shirt that we see here today! That would be my assumption anyways with my relative knowledge of complex hydrocarbons. Crafted for the wee Spider-Fans, the Spiderman Diamonds Polymesh Kids T-Shirt has Spidey's mask represented in faceted angles. It's probably how a spider would see this shirt. Probably.