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Mens
1123 Items
Reduced:$67.49 with codeRegular: $89.99You Save: $22.50

Men's Seattle Mariners Ken Griffey Jr. Mitchell & Ness Navy Cooperstown Collection Mesh Batting Practice Jersey

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Reduced:$101.24 with codeRegular: $134.99You Save: $33.75

Men's Seattle Mariners Ken Griffey Jr. Nike White Home Cooperstown Collection Player Jersey

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Reduced:$29.24 with codeRegular: $38.99You Save: $9.75

Men's Seattle Mariners New Era Blue Cooperstown Collection Wool 59FIFTY Fitted Hat

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Reduced: $59.99Regular: $99.99You Save: $40.00

Men's Seattle Mariners Majestic Light Blue Official Cool Base Team Jersey

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Reduced:$25.49 with codeRegular: $33.99You Save: $8.50

Men's Seattle Mariners New Era Graphite Mesh Fresh 9FIFTY Adjustable Snapback Hat

Most Popular in Seattle Mariners
Reduced:$112.49 with codeRegular: $149.99You Save: $37.50

Men's Seattle Mariners Nike White Home 2020 Replica Custom Jersey

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Reduced:$26.24 with codeRegular: $34.99You Save: $8.75

Men's Seattle Mariners Nike Aqua Large Logo Legend Performance T-Shirt

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Reduced:$86.24 with codeRegular: $114.99You Save: $28.75

Men's Seattle Mariners Nike Aqua Alternate 2020 Replica Team Jersey

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Reduced: $59.99Regular: $99.99You Save: $40.00

Men's Seattle Mariners Majestic Navy Official Cool Base Jersey

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Reduced: $71.99Regular: $119.99You Save: $48.00

Men's Seattle Mariners Ichiro Suzuki Majestic Home White Official Cool Base Player Jersey

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Reduced:$48.74 with codeRegular: $64.99You Save: $16.25

Men's Seattle Mariners Ken Griffey Jr. Mitchell & Ness Royal Cooperstown Mesh Batting Practice Jersey

Most Popular in Mens Jerseys
Reduced:$67.49 with codeRegular: $89.99You Save: $22.50

Men's Seattle Mariners Nike Charcoal/Navy Authentic Collection Thermal Crew Performance Pullover Sweatshirt

Most Popular in Sweatshirts & Fleece
Reduced:$59.99 with codeRegular: $79.99You Save: $20.00

Men's Seattle Mariners Nike Navy Authentic Collection Therma Performance Pullover Hoodie

Most Popular in Sweatshirts & Fleece
Reduced:$29.24 with codeRegular: $38.99You Save: $9.75

Men's Seattle Mariners New Era Black 59FIFTY Fitted Hat

Reduced:$56.24 with codeRegular: $74.99You Save: $18.75

Men's Seattle Mariners Nike Navy Legacy Performance Pullover Hoodie

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Reduced: $59.99Regular: $99.99You Save: $40.00

Men's Seattle Mariners Majestic White Home Cooperstown Cool Base Team Jersey

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Reduced:$59.99 with codeRegular: $79.99You Save: $20.00

Men's Seattle Mariners Nike Royal Authentic Collection Therma Performance Pullover Hoodie

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Reduced:$26.99 with codeRegular: $35.99You Save: $9.00

Men's Seattle Mariners New Era Black Multi 9FIFTY Adjustable Snapback Hat

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Reduced:$29.24 with codeRegular: $38.99You Save: $9.75

Men's Seattle Mariners New Era Black Team Low Profile 59FIFTY Fitted Hat

Reduced:$64.49 with codeRegular: $85.99You Save: $21.50

Men's Seattle Mariners Reyn Spooner Navy Scenic Button-Up Shirt

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Reduced:$82.49 with codeRegular: $109.99You Save: $27.50

Men's Seattle Mariners Starter Cream The Captain II Full-Zip Jacket

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Reduced:$23.99 with codeRegular: $31.99You Save: $8.00

Men's Seattle Mariners New Era Navy MLB Team Classic Game 39THIRTY Flex Hat

Most Popular in Mens Hats
Reduced:$44.99 with codeRegular: $59.99You Save: $15.00

Men's Seattle Mariners Stitches Navy/Teal Color Block Raglan Pullover Hoodie

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Reduced:$86.24 with codeRegular: $114.99You Save: $28.75

Men's Seattle Mariners Nike Gray Road 2020 Replica Team Jersey

Reduced:$56.24 with codeRegular: $74.99You Save: $18.75

Men's Seattle Mariners Nike Royal Cooperstown Collection Legend V-Neck Jersey

Reduced:$22.49 with codeRegular: $29.99You Save: $7.50

Men's Seattle Mariners New Era Navy Team Color 9FIFTY Snapback Hat

Reduced:$288.74 with codeRegular: $384.99You Save: $96.25

Men's Seattle Mariners Nike White 2020 Home Authentic Custom Jersey

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Reduced:$59.99 with codeRegular: $79.99You Save: $20.00

Men's Seattle Mariners Nike Navy/Aqua Authentic Collection Short Sleeve Hot Pullover Jacket

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Reduced:$22.49 with codeRegular: $29.99You Save: $7.50

Men's Seattle Mariners Nike Royal Batting Practice Logo Legend Performance T-Shirt

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Reduced:$22.49 with codeRegular: $29.99You Save: $7.50

Men's Seattle Mariners New Era Black Black & White 9FIFTY Snapback Hat

Reduced:$63.74 with codeRegular: $84.99You Save: $21.25

Men's Seattle Mariners Columbia Navy Flash Forward Team Full-Zip Windbreaker Jacket

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Reduced:$209.99 with codeRegular: $279.99You Save: $70.00

Men's Seattle Mariners Nike Royal Alternate 2020 Authentic Team Jersey

Reduced:$52.49 with codeRegular: $69.99You Save: $17.50

Men's Seattle Mariners Nike Navy Team Logo Element Performance Half-Zip Pullover Jacket

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Reduced:$29.24 with codeRegular: $38.99You Save: $9.75

Men's Seattle Mariners New Era Black Primary Logo Basic 59FIFTY Fitted Hat

Reduced:$26.24 with codeRegular: $34.99You Save: $8.75

Men's Seattle Mariners New Era Navy On-Field Replica Mesh Back 59FIFTY Fitted Hat

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Reduced:$187.49 with codeRegular: $249.99You Save: $62.50

Men's Seattle Mariners Ken Griffey Jr Mitchell & Ness White Authentic Jersey

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Reduced:$24.74 with codeRegular: $32.99You Save: $8.25

Men's Seattle Mariners Heathered Royal Distressed Team Tri-Blend T-Shirt

Reduced:$26.24 with codeRegular: $34.99You Save: $8.75

Men's Seattle Mariners Nike Royal Authentic Collection Team Performance T-Shirt

Reduced:$56.24 with codeRegular: $74.99You Save: $18.75

Men's Seattle Mariners Nike Navy Therma Pullover Hoodie

Reduced:$82.49 with codeRegular: $109.99You Save: $27.50

Men's Seattle Mariners Starter White/Navy Clean-Up Hitter Full-Snap Jacket

Reduced:$86.24 with codeRegular: $114.99You Save: $28.75

Men's Seattle Mariners Nike White Home 2020 Replica Team Jersey

Most Popular in Jerseys
Reduced:$44.99 with codeRegular: $59.99You Save: $15.00

Men's Seattle Mariners Royal Secondary Color Primary Logo Pullover Hoodie

Reduced:$86.24 with codeRegular: $114.99You Save: $28.75

Men's Seattle Mariners Nike Cream Alternate 2020 Replica Team Jersey

Reduced:$18.74 with codeRegular: $24.99You Save: $6.25

Men's Seattle Mariners New Era Navy/Aqua League 9FORTY Adjustable Hat

Reduced:$52.49 with codeRegular: $69.99You Save: $17.50

Men's Seattle Mariners Nike Gray Color Bar Club Pullover Hoodie

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Reduced:$209.99 with codeRegular: $279.99You Save: $70.00

Men's Seattle Mariners Nike White Home 2020 Authentic Team Jersey

Reduced:$18.74 with codeRegular: $24.99You Save: $6.25

Men's Seattle Mariners Fanatics Branded Royal Cooperstown Collection Forbes T-Shirt

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Reduced:$28.49 with codeRegular: $37.99You Save: $9.50

Men's Seattle Mariners Fanatics Branded Navy Personalized Playmaker T-Shirt

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Reduced:$209.99 with codeRegular: $279.99You Save: $70.00

Men's Seattle Mariners Nike Aqua Alternate 2020 Authentic Team Jersey

Men's Seattle Mariners Apparel

Your source for official Seattle Mariners apparel and gear for men is the MLB Shop. We have authentic jerseys from Majestic for all your favorite Seattle Mariners players. Browse all the latest styles in hats from all the top brands like New Era, '47, Nike, and more. You'll also find Seattle Mariners locker room t-shirts, hoodies, polos, jackets, Spring Training gear, and more. We carry the widest range of accessories, too, from wallets to golf gear to fan gear for your game room, car, office, or home. Get all the top Seattle Mariners men's gear from MLB Shop so you can support your team properly.