You'll always be dreaming of your favorite superheroes with our Official Marvel Comics Invincible 2 pack pillowcases! Made of 100% GOTS certified organic cotton and OEKO-TEX certified, you can sleep well knowing our pillowcases have been tested for over 300 harmful chemicals and synthetics. Our pillowcases are composed of durable long-staple cotton with a crisp percale weave that gradually softens over time. Includes 2 standard pillowcase. Marvel Comics pillowcase features your favorite Avengers, Captain America, Iron Man, Hulk, and Black Widow. To clean machine wash cold. To dry, air/tumble dry on low.