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Kids
141 Items
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Youth Seattle Mariners Majestic Cream Alternate Cool Base Jersey

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Reduced: $32.99Regular: $54.99You Save: $22.00

Youth Seattle Mariners Majestic Navy Alternate Cool Base Jersey

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$19.99

Youth Seattle Mariners Stance Mascot Crew Socks

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Reduced: $11.99Regular: $21.99You Save: $10.00

Girls Youth Seattle Mariners Soft as a Grape Navy Cotton Tank Top

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$19.99

Youth Seattle Mariners Stance Diamond Pro Crew Socks

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Reduced: $13.99Regular: $34.99You Save: $21.00

Youth Seattle Mariners Under Armour Navy MK-1 Performance Shorts

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Seattle Mariners Kids Apparel

Shop for the very best in Seattle Mariners kids gear and apparel on MLB Shop. We have Seattle Mariners jerseys, shirts, baby creepers, toys, collectibles, and more for your child. Browse items perfect for newborn gifts all the way to older youth jerseys and apparel. Welcome your kids into the Seattle Mariners fan club with their very own gear and begin a fun tradition that can last a lifetime. Whether you're shopping for your kids or looking for an awesome gift, MLB Shop is your source for Seattle Mariners kids gear.