Bamboosa Maternity Nightgown 70% Viscose from Organic Bamboo & 30% Organic Cotton. Perfect for cold weather will support shoulders while a sleep. Alternative Wear. Soft and silky comfort for any kind of weather in this naturally thermal regulating 3/4 Sleeve V-Neck. Features: Soft, breathable, lightweight 70% viscose from organic bamboo / 30% organic cotton Care: Machine wash cold or warm, tumble dry low, do not bleach