Due to the Canada Postal strike - some addresses within the country will be temporarily unavailable for delivery and returns processing. All packages will be delivered and returns processed as soon as possible.
100% Official Merchandise
365 Day Returns
Free Shipping on orders Over $69. Use Code: 69CA. *Each offer has a limited duration that expires at the specified time. Some promotions may require that you enter a code. By making a purchase featuring a discount or promotion, including where a code may be required, you are agreeing to these terms and exclusions. Generally, eligibility will be as reflected in the price shown on the product page. However, discounts and promotions for certain products may only appear once an item is added to the cart and the code is entered. Prices and fees, including any applicable discount(s), will be as reflected in the cart. Only the as-discounted retail price (excluding applicable shipping, taxes, and handling fees) counts toward any minimum spend required for eligibility. If a rewards program applies, the rewards may only apply to the as-discounted retail price. Discounts and promotions do not apply to gift cards. Gift card purchases do not count toward any minimum spend required for eligibility. Exclusions may apply, including: all auctions and product drops; product that is already on sale, of limited quantity, for recent championship or other special events; select jerseys, on-field headwear, die cast and certain collectibles; and certain premium brand product. Additional terms and other exclusions may apply in our sole discretion.
1 - 63 of 63
Spring New Arrivals
SweatshirtsT-Shirts
63 Items
  • 1
  • 1 of 1
Ships Free
Reduced: $80.99
Regular: $114.99
Seattle Mariners Nike Authentic Collection Performance Pullover Hoodie - Navy
Almost Gone!
Reduced: $31.99
Regular: $44.99
Seattle Mariners Nike Wordmark Logo Long Sleeve T-Shirt - Navy
Almost Gone!
Reduced: $66.99
Regular: $94.99
Seattle Mariners Nike Authentic Collection Tri-Blend Performance Pullover Hoodie - Navy
Almost Gone!
Ships Free
Reduced: $69.99
Regular: $99.99
Seattle Mariners Nike Tri-Code Lockup Short Sleeve Pullover Hoodie - Navy
Almost Gone!
Reduced: $49.99
Regular: $71.99
Seattle Mariners Nike Authentic Collection Game Time Raglan Performance Long Sleeve T-Shirt - Navy
$58.99
Seattle Mariners Nike Arched T-Shirt - Heather Gray
Reduced: $40.99
Regular: $58.99
Seattle Mariners Nike Fuse Logo T-Shirt - Navy
Reduced: $40.99
Regular: $58.99
Seattle Mariners Nike My Town Legend T-Shirt - Navy
Reduced: $40.99
Regular: $58.99
Seattle Mariners Nike Cooperstown Wordmark T-Shirt - Gold
Ships Free
Reduced: $106.99
Regular: $151.99
Seattle Mariners Nike Authentic Collection Game Time Performance Quarter-Zip Top - Navy
Ships Free
Reduced: $82.99
Regular: $118.99
Seattle Mariners Nike Agility Pacer Lightweight Performance Half-Zip Top - Navy
Reduced: $46.99
Regular: $67.99
Seattle Mariners Nike Legend Fuse Large Logo Performance T-Shirt - Navy
Ships Free
Reduced: $206.99
Regular: $295.99
Seattle Mariners Nike Authentic Collection Full-Zip Bomber Jacket - Navy
Most Popular in Jackets
Ships Free
$101.99
Seattle Mariners Nike Authentic Collection Practice Performance Shorts - Navy
Most Popular in Shorts
Reduced: $40.99
Regular: $58.99
Seattle Mariners Nike Americana T-Shirt - Navy
Reduced: $40.99
Regular: $58.99
Seattle Mariners Nike City Connect Large Logo T-Shirt - Royal
Reduced: $40.99
Regular: $58.99
Seattle Mariners Nike City Connect T-Shirt - Royal
Most Popular in T-Shirts
Reduced: $46.99
Regular: $67.99
Seattle Mariners Nike 2-Hit Speed City Connect T-Shirt - Royal
Reduced: $46.99
Regular: $67.99
Seattle Mariners Nike Large Logo Back Stack T-Shirt - Navy
Reduced: $40.99
Regular: $58.99
Seattle Mariners Nike Scoreboard T-Shirt - Navy
Reduced: $46.99
Regular: $67.99
Seattle Mariners Nike City Connect 2-Hit T-Shirt - Royal
Reduced: $46.99
Regular: $67.99
Seattle Mariners Nike Local Nickname Long Sleeve T-Shirt - Black
Reduced: $46.99
Regular: $67.99
Seattle Mariners Nike Fuse Legend T-Shirt - Navy
Reduced: $40.99
Regular: $58.99
Seattle Mariners Nike Team Swoosh Lockup T-Shirt - Navy
Reduced: $46.99
Regular: $67.99
Seattle Mariners Nike Large Logo Velocity T-Shirt - Navy
Reduced: $46.99
Regular: $67.99
Seattle Mariners Nike Cooperstown Collection Local Stack Tri-Blend T-Shirt - Heather Royal
Reduced: $46.99
Regular: $67.99
Julio Rodríguez Seattle Mariners Nike City Connect Fuse Name & Number T-Shirt - Royal
Reduced: $43.99
Regular: $58.99
Randy Arozarena Seattle Mariners Nike Fuse Name & Number T-Shirt - Navy
Reduced: $50.99
Regular: $67.99
Jorge Polanco Seattle Mariners Nike Fuse Name & Number T-Shirt - Navy
Ships Free
Reduced: $94.99
Regular: $134.99
Seattle Mariners Nike Club Stack Pullover Hoodie - Navy
Reduced: $46.99
Regular: $67.99
Seattle Mariners Nike Knockout Legend Performance T-Shirt - Navy
Reduced: $46.99
Regular: $67.99
Seattle Mariners Nike Authentic Collection Velocity Performance Practice T-Shirt - Navy
Reduced: $40.99
Regular: $58.99
Seattle Mariners Nike Fuse Wordmark T-Shirt - Navy
Reduced: $46.99
Regular: $67.99
Seattle Mariners Nike Authentic Collection Early Work Tri-Blend Performance T-Shirt - Navy
Reduced: $40.99
Regular: $58.99
Seattle Mariners Nike Fashion Local T-Shirt - Black
Most Popular in T-Shirts
Reduced: $46.99
Regular: $67.99
Seattle Mariners Nike Authentic Collection Velocity Performance Practice T-Shirt - Aqua
Reduced: $40.99
Regular: $58.99
Seattle Mariners Nike Home Team Bracket Stack T-Shirt - White
Almost Gone!
Reduced: $46.99
Regular: $67.99
Seattle Mariners Nike Home Plate Icon Legend Performance T-Shirt - Navy
Reduced: $50.99
Regular: $67.99
Seattle Mariners Nike Repeater Long Sleeve T-Shirt - Navy
Ships Free
$75.99
Seattle Mariners Nike Authentic Collection Practice Performance Long Sleeve T-Shirt - Navy
Most Popular in T-Shirts
Reduced: $52.99
Regular: $75.99
Julio Rodríguez Seattle Mariners Nike Fuse Name & Number T-Shirt - Aqua
Most Popular in T-Shirts
Reduced: $56.99
Regular: $75.99
Seattle Mariners Nike Woven Victory Performance Shorts - Navy
Almost Gone!
$67.99
Seattle Mariners Nike Authentic Collection Early Work Tri-Blend Performance T-Shirt - Aqua
Ships Free
Reduced: $94.99
Regular: $134.99
Seattle Mariners Nike Authentic Collection Game Time Raglan Performance Long Sleeve T-Shirt - Heather Gray/Navy
Most Popular in T-Shirts
Ships Free
Reduced: $100.99
Regular: $143.99
Seattle Mariners Nike Authentic Collection Practice Performance Pullover Hoodie - Navy
Most Popular in Sweatshirts
Ships Free
Reduced: $94.99
Regular: $126.99
Seattle Mariners Nike Tri Code Lockup Short Sleeve Pullover Hoodie - Navy
Ships Free
Reduced: $82.99
Regular: $118.99
Seattle Mariners Nike Arched Kicker Shorts - Navy
Ships Free
Reduced: $100.99
Regular: $143.99
Seattle Mariners Nike Authentic Collection Practice Performance Pullover Hoodie - Royal
Ships Free
Reduced: $88.99
Regular: $126.99
Seattle Mariners Nike Classic Fleece Performance Pullover Sweatshirt - Navy
Most Popular in Sweatshirts
Ships Free
Reduced: $118.99
Regular: $168.99
Seattle Mariners Nike Statement Pullover Hoodie - Light Brown
Ships Free
Reduced: $82.99
Regular: $118.99
Seattle Mariners Nike City Connect Authentic Collection Victory Performance Polo - Royal
Ships Free
Reduced: $82.99
Regular: $118.99
Seattle Mariners Nike Franchise Logo Pacer Performance Half-Zip Top - Navy
Ships Free
Reduced: $88.99
Regular: $126.99
Seattle Mariners Nike Club Slack Pullover Hoodie - Navy
Ships Free
Reduced: $69.99
Regular: $92.99
Seattle Mariners Nike Authentic Collection Game Time Raglan Performance Long Sleeve T-Shirt - Navy
Ships Free
Reduced: $118.99
Regular: $168.99
Seattle Mariners Nike Authentic Collection Player Performance Pullover Sweatshirt - Navy
Ships Free
Reduced: $112.99
Regular: $160.99
Seattle Mariners Nike Authentic Collection Travel Player Performance Pants - Gray
Almost Gone!
Ships Free
Reduced: $88.99
Regular: $126.99
Seattle Mariners Nike Authentic Collection Pregame Raglan Performance T-Shirt - Navy
Almost Gone!
Ships Free
Reduced: $76.99
Regular: $109.99
Seattle Mariners Nike Authentic Collection Early Work Performance Sleeveless Pullover Hoodie - Heather Gray
Reduced: $40.99
Regular: $58.99
Nike 2025 MLB All-Star Game Logo T-Shirt - Navy
Most Popular in T-Shirts
Ships Free
Reduced: $94.99
Regular: $134.99
Nike 2025 MLB All-Star Game Logo Club Fleece Pullover Hoodie - Navy
Most Popular in Sweatshirts
Reduced: $40.99
Regular: $58.99
Nike 2025 MLB All-Star Game Logo T-Shirt - Red
Reduced: $40.99
Regular: $58.99
Nike 2025 MLB All-Star Game Wordmark T-Shirt - Red
Most Popular in T-Shirts
Reduced: $40.99
Regular: $58.99
Nike 2025 MLB All-Star Game Wordmark T-Shirt - Navy
  • 1
  • 1 of 1
SweatshirtsT-Shirts