-100% Pima Cotton Knit -T.B.B.C. Night Nights are not preshrunk. -Machine wash cold with like colors. Wash inside out. Gentle cycle. Lay flat to dry or tumble dry low. -The Knox's Night Night feature a zip closure with a button tab at the top and a faux drop seat for added cuteness. -12~18 months new with tags!! Purchased these for a friend’s child and got the wrong size 😕