95% Bamboo Viscose, 5% SpandexImportedElastic closure[FABRIC] Bamboo material is super breathable, comfortable, stretchy and skin-friendly.[FABRIC] Extra-soft bamboo does great job at breathability, excellent drapability and elasticity.[DESIGN DETAIL] Side vents, scoop neck, above knee length, with great stitching.[WASHING] Machine washable, better to Hand Wash. Do Not Bleach. Hang Dry.[Occasion] Perfect for day relaxing, night dreaming, lounging sleep or home bedroom. Great for a thoughtful gift.