The Avengers Retro Kids Shorts Set brings together the vintage fury of Marvel's Mighty Thor, Invincible Iron Man, Incredible Hulk, and First Avenger Captain America on a fine combination of shirt and short. See? That's why we send people to college! The orange shirt is made from 65% polyester 35% cotton while the grey shorts are made out of 100% polyester and have an orange stripe running down the side. Children love the Avengers Retro Kids Shorts Set and it saves time because the shirt and short are already picked out. Aww yeah!