Let your child become the Batman! This is the same style cowl worn by Christian Bale in the blockbuster movie Batman Begins (and for the first half of the The Dark Knight). This mask is a little different from the adult mask because the rear is a little more open and it does not cover the neck area (it is a 3/4 mask). This is to help keep your child's head cool and and so they can turn their heads comfortably when wearing these masks. A little extra functionality put in that Christian Bale didn't even have! It is made of vinyl.