2 PCS SET Avengers Assemble (Iron Man, Hulk) Boys Pajama Top & Pants EXCELLENT FABRIC: 100% polyester, high quality machine washable material. Very high quality children sleepwear - satisfaction guaranteed! The Avengers Iron Man, Hulk, Captain America, Thor logo printed at top front and printed allover the pants for a classic look; Long sleeve and crew neck a custom fit; Sleep pants features elastic waistband snug up the fit and create a cozy feel against the skin.