In just its second season as a franchise, the Utah Mammoth authored a breakthrough campaign in 2025-26, clinching the franchise's first-ever playoff berth behind six 20-goal scorers and a resilient, physical brand of hockey. That historic run carried into the postseason, where the Mammoth squared off against the Vegas Golden Knights in a tightly contested, defensively minded Western Conference First Round series that was decided in six games. Featuring official details and graphics, this black home jersey was game-used by Kailer Yamamoto during that unforgettable series, a tangible piece of the young franchise's maiden playoff appearance. Hand-selected from Utah's inaugural postseason roster, this jersey stands as a meaningful collector's item commemorating a milestone chapter in Mammoth history