The size is M, but it's rather small, so it might be closer to an S. It has stretch. ● Size: Tag notation 2 Length 48cm Waist (laid flat) approx. 36cm Please note that there may be slight variations due to amateur measurements. ● Please understand that this is a used item before purchasing. Please refrain from purchasing if you are sensitive to this. ● There are some wrinkles as it was stored at home. ● Returns are not accepted, so please ask questions about the size beforehand.