In handball, Julian Köster is known for his commitment and for delivering when it matters most. As one of the athletes shaping Hydraid’s new chapter, Julian represents the connection between everyday habits and elite performance. Hydraid has become an essential part of his preparation and recovery process. Because a great game starts long before stepping onto the court, and the daily routines behind success often make the biggest difference. These small details make special moments possible and help turn hard work into standout performances.