Made of 100% Poplin Cotton. Munki Munki's classic poplin pajama set gets a style upgrade with contrast cuffs and multi-colored buttons. Button up top includes one pocket under the left shoulder and overall print. Pant has elastic waistband with draw string and overall print. Machine wash in cold water. Tumble dry low. Remove promptly. Do not Bleach. Sizes run as follows: XS (2-4), Sml (4-6), Med (8-10), Lrg (10-12), XL (12-14), XXL (16-18).