The 2025-26 FSV Mainz third shirt by JAKO features an elegant and understated design centered on a subtle cream base. It incorporates a sophisticated anthracite color for the logos, collar, sleeve cuffs, and side stripes. A distinctive checkered pattern in anthracite runs across the jersey, while a splash of pink on the shoulders provides a vibrant contrast. Completing the look, the city’s coat of arms is placed on the back of the neck to highlight the club's deep connection to Mainz.