Made of 83% Polyester and 17% Cotton. This classic shirt and pant pajama set is ultra smooth and soft against your skin. Longsleeve button down shirt has a v-neck and left chest pocket. Slits at hem at sides make for easier movement. Pants have wide elastic waistband with drawstring at front. Both are detailed with contrasting embroidered scroll on pocket and with contrasting piping. Machine wash warm with like colors. Gentle cycle. Non-chlorine bleach when needed. Tumble dry low. Remove promptly. Low iron if needed. Sizes run as follows: XS (2-4), Sml (4-6), Med (6-8), Lrg (10-12), XL (14-16).