Comfortable 4 pieces pajamas for little boys For comfort and safety, both the top and bottom are made from high quality cotton material, your little one will enjoy such cozy sleepwear. Perfect birthday gift 4-Piece cotton sleepwear set,all with cute and interesting grow dinosaur prints, exquisite packaging, best choice for your boy’s birthday gift. Match summer best Stretchable and breathable material, lightweight fabric, let your boy lose heat faster to keep cool and have a nice sleep in hot summer. Wash note As the natural cotton may shrink a little after being washed, so simply machine wash them in cold water and dryer in low heat. ATTENTION: The snugly fitted pajamas set is designed in accordance with figure of most American kids, recommend one or two bigger size because of the snug fit.