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Authentic Collection
125 Items
Men's Seattle Mariners Majestic Navy Authentic Collection Batting Practice Waffle Quarter-Zip Pullover Jacket
$69.99 with codeRegular: $99.99You Save: $30.00

Men's Seattle Mariners Majestic Navy Authentic Collection Batting Practice Waffle Quarter-Zip Pullover Jacket

Most Popular in Sweatshirts & Fleece
Men's Seattle Mariners New Era Navy On-Field Sport Cuffed Knit Hat
$19.59 with codeRegular: $27.99You Save: $8.40

Men's Seattle Mariners New Era Navy On-Field Sport Cuffed Knit Hat

Women's Seattle Mariners Majestic Navy On-Field Thermal Jacket
$90.99 with codeRegular: $129.99You Save: $39.00

Women's Seattle Mariners Majestic Navy On-Field Thermal Jacket

Men's Seattle Mariners Majestic Cream Flex Base Hispanic Heritage Team Jersey
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Men's Seattle Mariners Dan Vogelbach Majestic Aqua Alternate Authentic Collection Flex Base Player Jersey
$209.99 with codeRegular: $299.99You Save: $90.00

Men's Seattle Mariners Dan Vogelbach Majestic Aqua Alternate Authentic Collection Flex Base Player Jersey

FREE Jersey Assurance
Men's Seattle Mariners Mitch Haniger Majestic Cream Flex Base Hispanic Heritage Player Jersey
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Sale: $220.49Regular: $293.99You Save: $73.50

Men's Seattle Mariners Mitch Haniger Majestic Cream Flex Base Hispanic Heritage Player Jersey

FREE Jersey Assurance
Men's Seattle Mariners Majestic Navy Authentic Collection Ultra-Light Pullover Hoodie
$38.49 with codeRegular: $54.99You Save: $16.50on select sizes

Men's Seattle Mariners Majestic Navy Authentic Collection Ultra-Light Pullover Hoodie

Men's Seattle Mariners New Era Navy/Red 2019 Stars & Stripes 4th of July On-Field 59FIFTY Fitted Hat
$27.99 with codeRegular: $39.99You Save: $12.00

Men's Seattle Mariners New Era Navy/Red 2019 Stars & Stripes 4th of July On-Field 59FIFTY Fitted Hat

Most Popular in Seattle Mariners
Youth Seattle Mariners New Era Navy On-Field Sport Cuffed Knit Hat
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$16.79 with codeRegular: $23.99You Save: $7.20

Youth Seattle Mariners New Era Navy On-Field Sport Cuffed Knit Hat

Men's Seattle Mariners New Era Navy/Red 2019 Stars & Stripes 4th of July On-Field Low Profile 59FIFTY Fitted Hat
$27.99 with codeRegular: $39.99You Save: $12.00

Men's Seattle Mariners New Era Navy/Red 2019 Stars & Stripes 4th of July On-Field Low Profile 59FIFTY Fitted Hat

Most Popular in Seattle Mariners
Men's Seattle Mariners Nike Navy Authentic Collection Performance Shorts
$41.24 with codeRegular: $54.99You Save: $13.75

Men's Seattle Mariners Nike Navy Authentic Collection Performance Shorts

Men's Seattle Mariners New Era Navy 2019 MLB All-Star Game On-Field Low Profile 59FIFTY Fitted Hat
$27.99 with codeRegular: $39.99You Save: $12.00

Men's Seattle Mariners New Era Navy 2019 MLB All-Star Game On-Field Low Profile 59FIFTY Fitted Hat

Most Popular in Hats
Youth Seattle Mariners New Era Navy On-Field Sport Knit Hat
$16.79 with codeRegular: $23.99You Save: $7.20

Youth Seattle Mariners New Era Navy On-Field Sport Knit Hat

Men's Seattle Mariners New Era Navy 2018 9/11 Authentic Collection 59FIFTY Fitted Hat
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Men's Seattle Mariners Nike Navy Authentic Collection Pro Hypercool Performance T-Shirt
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Men's Seattle Mariners Majestic Royal On Field Cool Base Training Half-Zip Jacket
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Men's Seattle Mariners New Era Navy 2018 MLB All-Star Workout On-Field 59FIFTY Fitted Hat
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Men's Seattle Mariners Dan Vogelbach Majestic Navy Alternate Authentic Collection Flex Base Player Jersey
$228.19 with codeRegular: $325.99You Save: $97.80

Men's Seattle Mariners Dan Vogelbach Majestic Navy Alternate Authentic Collection Flex Base Player Jersey

FREE Jersey Assurance
Men's Seattle Mariners New Era Graphite/Red 2019 MLB All-Star Workout On-Field 59FIFTY Fitted Hat
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$27.99 with codeRegular: $39.99You Save: $12.00on select sizes

Men's Seattle Mariners New Era Graphite/Red 2019 MLB All-Star Workout On-Field 59FIFTY Fitted Hat

Most Popular in Hats

Seattle Mariners Authentic Collection

You’re such a devoted fan that the authenticity of your allegiance is never called into question. At the MLB Shop there’s a collection just for true supporters like you. Our extensive array of gear in the officially licensed Seattle Mariners Authentic Collection will help your broadcast your passion to everyone around you. Top off your game day outfit with a classic Seattle Mariners fitted hat or Seattle Mariners mesh cap from the Authentic Collection, and you’ll be ready to show your support. If it’s getting a little chilly outside and you still want to boast your pride, rock any of the elite Seattle Mariners hoodies and Seattle Mariners sweatshirts featured in the shop for a true team look in the cold. Your excitement will be tangible when you head out into the cool weather sporting a top-notch Seattle Mariners varsity jacket, Seattle Mariners pullover, Seattle Mariners full-zip jacket and more from our collection. When things start to heat up, you’ll be prepared with the latest and greatest Seattle Mariners tank tops and Seattle Mariners shorts we have fully stocked. Whatever style you’re searching for, we have all the top brands, so every fan can find a Seattle Mariners T-shirt, cap, and more perfect for them. You can even emulate your favorite Seattle Mariners players and feel like a part of the team by getting your hands on any of the authentic Seattle Mariners jerseys and Seattle Mariners custom jerseys. Maybe you already have a vast array of Seattle Mariners team gear that you’re looking to expand or maybe you’re just beginning, but the Authentic Collection the MLB Shop is the only destination for all the hottest officially licensed Seattle Mariners gear that you’re searching for.