History is being written in October 2025. Commemorate their incredible postseason journey with the 2025 Seattle Mariners ALCS Shirt. Designed for the faithful who have been with them every step of the way, this shirt is your uniform for the fight for the pennant. Secure your piece of Mariners history now.

2025 Seattle Mariners ALCS Shirt | Celebrate History

This 2025 ALCS Navigator Tee is the ultimate piece of fan gear for this unforgettable postseason run. Expertly designed, the shirt features the iconic Mariners “S” logo, reimagined with a striking compass rose at its heart—symbolizing the team’s unwavering direction and relentless journey to the top. Encased in a sophisticated gold and white diamond, the emblem represents the pinnacle of American League baseball. Beneath this powerful symbol, “20 ALCS 25” is proudly displayed, cementing this shirt as a timeless keepsake of a legendary season. Printed on a classic, bold black tee, the design elements pop,

This shirt is crafted for every fan who has been part of the journey. It’s for the season ticket holder who has been there through every high and low, the new generation of fans captivated by this incredible team, and the die-hard supporter watching from thousands of miles away. Whether you’re cheering from the stands at T-Mobile Park, joining the roar at a local watch party, or representing the M’s from afar, this shirt unites the entire fanbase. It’s a tribute to the unwavering loyalty and passion that defines Seattle baseball. This is more than merchandise; it’s a badge of honor for those who always believed.

Product Specifications:

• Classic T‑Shirt (G500): 5.3 oz, 100% cotton for everyday comfort; Ash is 99% cotton and 1% polyester, Sport Grey 90% cotton and 10% polyester.
• Ladies T‑Shirt: 100% preshrunk cotton; Ash Grey is 99% cotton and 1% polyester, with a feminine scoop neck and slightly tapered fit.
• Crewneck Sweatshirt (G180): 8 oz fleece made from a soft 50% cotton and 50% polyester blend for warmth and durability.
• Pullover Hoodie (G185): 5.3-ounce, 100% cotton (99/1 cotton/poly (Ash) & 90/10 cotton/poly (Sport Grey)
• Long Sleeve T‑Shirt: 5.3 oz, 100% cotton; Ash is 99% cotton and 1% polyester, Sport Grey 90% cotton and 10% polyester for added softness.
• Youth T‑Shirt: 5.3 oz, 100% preshrunk cotton; Ash is 99% cotton and 1% polyester, Sport Grey 90% cotton and 10% polyester for easy everyday wear.
• Men’s Tank Top: 5.3 oz, 100% cotton with taped neck and shoulders and a tearaway label for extra comfort.
• Women’s Tank Top: 4 oz fabric, 60% combed ring‑spun cotton and 40% polyester jersey, laundered to reduce shrinkage and designed with a flattering fit.