The product is a Borussia Dortmund training polo shirt by Kappa, featuring the team's signature black and yellow colors. This men's shirt is designed for soccer fans who want to show their support for the team. Made by the brand PUMA, it is in size M, making it suitable for a variety of body types. Whether worn during training sessions or on casual outings, this shirt is perfect for any fan of Borussia Dortmund looking to represent their favorite team in style.