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Cheer on your favorite team in style with this officially Major League Baseball Association apparel. Whether you are on campus, attending a game, at

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For Love of the Mascots! Our officially licensed MLB Mascot Pocket Tee design for the Mariners depicts Mariner Moose emerging from behind the left chest pocket.

Baseballism Mascot Pocket Tee - Seattle Mariners 3XL

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Ken Griffey Jr. Seattle Mariners T-Shirt by Michael Pattison