New Balance Japan has signed a Diamond Partner agreement to become the official supplier for Samurai Japan, equipping the national baseball team across every age bracket from U-12 youth squads to the senior side. The redesigned home and visitor uniforms debut at the RAGZAS Asia Professional Baseball Championship 2026.
As Japan’s national team continues to set a global standard for baseball excellence, the kit becomes a marker of that stature. New Balance has staked a durable position at the centre of a sport the country reveres.
For New Balance, the deal is a play for visibility in the Japanese market beyond the running category where the brand is best established. Attaching the Swoosh’s Boston rival to the collective identity of Samurai Japan grants it a permanent place in the national conversation around the sport.
The partnership, brokered with NPB Enterprises, supplies not only the evocative match-day uniforms but the performance apparel, footwear, and equipment that travel with the squads throughout the national programme. It positions New Balance as a long-term institutional partner rather than a single-tournament sponsor.
