This is a Chiba Lotte Marines training wear (hoodie). The size is F (Free Size). I purchased this about 10 years ago, so I don't remember the details, but I believe it was sold as a replica of the model worn by the players at the time. The fabric is thin, so it's suitable for those who train. It has been worn to a certain extent, so I think there is a feeling of use. Therefore, please refrain from purchasing if you are sensitive to this. Thank you.