This is a pack T-shirt from YOUNG & OLSEN, a special order for IENA. I've worn it about three times. The following is a quote from the website: A special collaboration item between YOUNG & OLSEN and IENA is here! The compact size and the perfect length, which can be worn beautifully both tucked in and out, are the key points. Material: Body: 100% cotton Care: Body: Machine washable Country of origin: Japan Thank you for looking.