From Aritzia site: Designed to function as workwear or definitely-not-working-today wear, this is a utility button-up shirt with adjustable sleeves and flap pockets. It's made with DivineDrape — soft, drapey twill with a luxuriously comfortable feel. This much-loved fabric is made with TENCEL™ Lyocell. From seller: I absolutely love this top, and have treated it with care so it is in like-new condition. Although it is machine washable, I have only dry cleaned it, so there is no visible wear or pilling. Only selling because I have lost weight and it is now too big. Let my loss be your gain!