Sara's Prints long johns are made from 100% cotton and are made to fit snug. This set of pajamas is long pants with long sleeves and is perfect for Christmas morning! This print comes in sizes 2 to size 12. The neckband and cuffs are cotton/spandex for a better fit. Manufactured to the Snug-fitting. Requirements of the CPSC. Machine wash cold and tumble dry low for best results.