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159 Items159 Items
Ken Griffey Jr. Seattle Mariners Mitchell & Ness Player Graphic Long Sleeve T-Shirt - Black
In 71 carts
$51.99 to $64.99, regular $64.99
Seattle Mariners Nike Authentic Collection Legend Dri-FIT Long Sleeve T-Shirt - Cream
In 62 carts
$38.39, regular $47.99
Almost Gone
Seattle Mariners Logo Athletic Heart & Soul Long Sleeve T-Shirt - Navy
In 18 carts
$27.99, regular $34.99
Seattle Mariners Fanatics Lock-Up Legacy Long Sleeve T-Shirt - Navy
In 12 carts
$31.99, regular $39.99
Seattle Mariners Nike Cooperstown Graphic Long Sleeve T-Shirt - Royal
In 29 carts
$35.99, regular $44.99
Seattle Mariners Women's Forged Mascot Long Sleeve T-Shirt - Black
$35.99, regular $44.99
Seattle Mariners Hometown Collection Cascadia Long Sleeve T-Shirt - Navy
$31.99, regular $39.99
Seattle Mariners Team Heart & Soul Long Sleeve T-Shirt - Heathered Gray
Heather Gray
Navy
$31.99, regular $39.99
Seattle Mariners Nike Authentic Collection Player Dri-FIT Lightweight Pullover  - Navy/Teal
$87.99, regular $109.99
Almost Gone
Seattle Mariners Victory Arch Long Sleeve T-Shirt - Ash
Heather Gray
Navy
$31.99, regular $39.99
Seattle Mariners Official Team Logo Long Sleeve T-Shirt - Heather Gray
$31.99, regular $39.99
Cal Raleigh Seattle Mariners Name & Number Fastball Long Sleeve T-Shirt - Navy
$35.99, regular $44.99
Seattle Mariners  Hustle Personalized Name & Number Long Sleeve T-Shirt - Navy
$39.99, regular $49.99
Seattle Mariners Fanatics Front Office Tech Lightweight Hoodie T-Shirt - Black
$63.99, regular $79.99
Almost Gone
 Seattle Mariners Champion Jersey Long Sleeve T-Shirt - White
In 47 carts
$23.99, regular $29.99
Almost Gone
Seattle Mariners Darius Rucker Collection by Fanatics Henley Long Sleeve T-Shirt - Navy/White
In 16 carts
Seattle Mariners Homage Raglan Tri-Blend 3/4-Sleeve T-Shirt - Gray
In 13 carts
$36.79, regular $45.99
Seattle Mariners Mitchell & Ness Youth Triple Play Long Sleeve T-Shirt - Navy
$44.79, regular $55.99
Seattle Mariners Champion Cooperstown Winning Tradition Tri-Blend Long Sleeve T-Shirt - White
In 12 carts
Seattle Mariners Columbia Terminal Tackle Long Sleeve Hoodie T-Shirt - Navy
$63.99, regular $79.99
 Seattle Mariners Levelwear Insignia Lightweight Long Sleeve Hooded T-Shirt - Tan
$35.99, regular $79.99
Clearance
Almost Gone
Seattle Mariners Darius Rucker Collection by Fanatics Knit Hooded Henley Long Sleeve T-Shirt - Tan/Brown
$38.99, regular $64.99
Clearance
 Seattle Mariners Soft as a Grape Women's Pigment Dye Long Sleeve T-Shirt - Blue
$43.99, regular $54.99
Almost Gone
Seattle Mariners Concepts Sport Women's Venture Sweater Romper - Gray
$27.99, regular $34.99
Seattle Mariners Starter Line Up Long Sleeve V-Neck T-Shirt - Black
$79.99, regular $99.99
Seattle Mariners Columbia Shotgun Long Sleeve T-Shirt - White
$69.59, regular $86.99

Shop Seattle Mariners T-Shirts at Fanatics

Mariner t-shirts in this officially licensed collection represent the full breadth of Seattle Mariners apparel available through Fanatics. Whether you want a classic crew neck or a moisture-wicking Dri-FIT style, the roster of MLB-licensed brands ensures you are wearing genuine team gear. Options span men, women, and kids so the whole lineup can represent T-Mobile Park in style.

As an officially licensed MLB retailer, Fanatics carries Seattle Mariners shirts sourced directly from authorized brand partners including Tiny Turnip, Fanatics MTO Label, and Nike. Every mariners t-shirt ships with the assurance of authentic team logos, official colorways, and licensed construction built to last through a full 162-game season and beyond.

Finding the right Seattle Mariners t-shirt

Start by deciding on sleeve length. Short Sleeve options dominate the catalog with hundreds of choices, while Long Sleeve styles are the go-to for cooler Pacific Northwest evenings at the ballpark. From there, consider fabric: Nike Dri-FIT construction wicks moisture during warm summer games, while Homage and Mitchell & Ness lean into soft-hand retro graphics for a throwback look. If you want a player-specific mariners baseball t-shirt, dedicated pages for roster members let you narrow by name. Tank Tops round out the warm-weather lineup for fans who prefer a cut-sleeve silhouette.

Frequently asked questions about Seattle Mariners T-Shirts

Q: Which Seattle Mariners players have their own t-shirts on Fanatics?

A: Fanatics carries player t-shirts for several current Mariners. You can find dedicated pages for Julio Rodríguez, Cal Raleigh, Randy Arozarena, and J.P. Crawford, among others, each with a range of licensed tee styles.

Q: Does Fanatics carry Seattle Mariners polo shirts?

A: While the primary t-shirt catalog focuses on crew neck and v-neck styles, polo-style tops do surface across brand partners in the broader Seattle Mariners apparel collection. Checking the full Mariners clothing section gives you the widest view of collared and performance-polo options available.

Q: Are there Mariners Dri-FIT shirts available?

A: Yes. Nike produces Dri-FIT performance t-shirts bearing official Seattle Mariners marks. These moisture-management tees are built for fans who wear their gear at the game, during workouts, or on warm Pacific Northwest afternoons when staying cool matters.

More Seattle Mariners gear