The Lily Rose nightgown is lightweight, breathable, and easy care. It is 100% washable. We were inspired by our own vision of glamour and expressing the allure of femininity through the Lily Rose nightgown. Made from 96% poly-silk and 3% spandex. Trim is poly charmeuse and cotton lace. CARE: machine wash cold and hang to dry. gentle cycle. Do not bleach. May use cool iron or steam if needed.