This is an authentic 2024 Japan National Team uniform I purchased at a sports shop in Tokyo during a New Year's sale. This is the authentic model worn by the players. While Mercari is flooded with counterfeits, this was purchased from an official shop, so I can show you the product number and tag. It's available in both long and short sleeves. It's also available in sizes L and XL, so please feel free to inquire about stock availability.