Made of 100% cotton, it's easy to wear. Although it's labeled as size M, it has a relaxed fit, so I've listed it as a size L based on the actual measurements. Shirt Shoulder width: Approximately 40cm Pit-to-pit width: Approximately 45cm Length: Approximately 62cm Cardigan Shoulder width: Approximately 41cm Pit-to-pit width: Approximately 46cm Length: Approximately 62.5cm Although it's new and unused, it has been stored at home, so it's not perfect. Please understand this before contacting me. Please note that there is a possibility of changing the shipping method to Yuu Yuu Mercari.