On the top of the flame resistant 100% polyester Avengers Comic Heads Kids Fleece Pajama Set we have the calm expressions of Marvel's Mighty Thor, Invincible Iron Man, Incredible Hulk and the Super Solider Captain America! It is actually pretty weird to write that about the Hulk, but as you can see...he is 'calmer' than normal! The pants of the Avengers Comic Heads Kids Fleece Pajama Set have symbols and written sound effects to help supplement the exceptional shirt. Know of a little person with an affinity for the Avengers or any of the earlier mentioned heroes? Then the choice is simple; the Avengers Comic Heads Kids Fleece Pajama Set!