The collaboration between FOUR and Opel was born from a shared passion for design, craftsmanship, and innovation. At the heart of this partnership were 4 fully customized Opel Rocks cars, each one uniquely branded by FOUR.

Designed and produced in close collaboration between both teams, these four vehicles were made to stand out. Every car featured bespoke details, refined finishes, and design elements that embodied the shared creative DNA of Opel and FOUR. Together, they stood as four distinct statements of urban expression, merging precision, individuality, and a forward-thinking mindset.

For FOUR, the project extended beyond design itself. It connected the brand’s creative vision the cities culture, capturing the interplay between motion, identity, and style. The collaboration mirrored the same spirit found in the FW25 Collection and FOUR Sportswear, where clean silhouettes, functionality, and refined details define the modern uniform.

Amsterdam became the backdrop for the Opel Rocks City Challenge, an event that brought together creativity, mobility and community. Teams explored the city through a series of unique challenges that captured the energy and spontaneity of urban life. Guests and creators reflected the effortless aesthetic that defines FOUR, wearing select pieces from the FW25 Collection and FOUR Sportswear. Subtle details appeared throughout the event, a quiet nod to the brand’s refined design language and connection to movement.

From the first checkpoint to the last, the Opel Rocks City Challenge brought Amsterdam to life. Teams travelled through the city completing challenges such as Blitz Slalom, Dino Parking and Spot the Rocks. Each moment encouraged creativity and teamwork, turning Amsterdam into a playground of design and discovery. The streets were filled with familiar faces from FOUR’s wider community, including artists, athletes, designers and friends of the brand. Subtle expressions of FOUR’s design identity appeared throughout the day, blending naturally into the dynamic setting of the event. From sleek outerwear to relaxed sportswear silhouettes, the looks reflected the same balance between form and movement that defines the brand’s aesthetic.

As the day came to an end, excitement filled the air. Architrackz and Rits took the win after an inspiring series of challenges that celebrated creativity and connection across Amsterdam. Their victory captured the essence of the event, balancing performance, design and community.
The day concluded inside the FOUR store, where guests, creators and friends gathered to unwind and share the experience. Surrounded by the latest seasonal pieces from the FW25 Collection, the atmosphere reflected what the collaboration stood for: creativity, movement and the energy of the city.