STAR WARS: Boys Pajama Top & Pants Set EXCELLENT FABRIC: top: 100% polyester; bottom: 100% polar fleece polyester, high quality machine washable material. Very high quality sleepwear - satisfaction guaranteed. Crew-neck and long sleeves for a custom fit; Elastic waistband sleep pants for a comfortably snug fit and create a cozy feel against your skin. Please consult our size in chart in the listing's images.