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Shop Seattle Mariners
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Kids
162 Items
Youth Seattle Mariners Majestic Navy Alternate Cool Base Jersey
Sale: $32.99Regular: $54.99You Save: $22.00

Youth Seattle Mariners Majestic Navy Alternate Cool Base Jersey

Infant Seattle Mariners Majestic Alternate Aqua Official Cool Base Jersey
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Youth Seattle Mariners Stitches Navy Team Fleece Pullover Hoodie
Sale: $23.99Regular: $39.99You Save: $16.00

Youth Seattle Mariners Stitches Navy Team Fleece Pullover Hoodie

Preschool Seattle Mariners Majestic Aqua Cool Base Official Team Jersey
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Infant Seattle Mariners New Era Navy My 1st 9TWENTY Adjustable Hat
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$14.99 with codeRegular: $19.99You Save: $5.00

Infant Seattle Mariners New Era Navy My 1st 9TWENTY Adjustable Hat

Toddler Seattle Mariners White/Navy The Lineup V-Neck & Shorts Set
$23.99 with codeRegular: $31.99You Save: $8.00

Toddler Seattle Mariners White/Navy The Lineup V-Neck & Shorts Set

Toddler Seattle Mariners Majestic Cream Alternate Official Cool Base Jersey
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Youth Seattle Mariners Majestic Cream Alternate Cool Base Jersey
Sale: $32.99Regular: $54.99You Save: $22.00

Youth Seattle Mariners Majestic Cream Alternate Cool Base Jersey

Youth Seattle Mariners Under Armour Navy Crop Logo Synthetic Performance T-Shirt
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Youth Seattle Mariners Majestic White Home Cool Base Jersey
Sale: $32.99Regular: $54.99You Save: $22.00

Youth Seattle Mariners Majestic White Home Cool Base Jersey

Toddler Seattle Mariners Navy Primary Team Logo T-Shirt
$11.99 with codeRegular: $15.99You Save: $4.00

Toddler Seattle Mariners Navy Primary Team Logo T-Shirt

Toddler Girls Seattle Mariners Soft as a Grape Pink Polka Dot Logo T-Shirt
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Youth Seattle Mariners Soft as a Grape Aqua Cotton Crew Neck T-Shirt
$16.49 with codeRegular: $21.99You Save: $5.50

Youth Seattle Mariners Soft as a Grape Aqua Cotton Crew Neck T-Shirt

Newborn & Infant Seattle Mariners Navy/Aqua Dugout Dude Bodysuit, Bib & Booties Set
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Youth Seattle Mariners Navy Primary Logo Pullover Hoodie
$37.49 with codeRegular: $49.99You Save: $12.50

Youth Seattle Mariners Navy Primary Logo Pullover Hoodie

Youth Seattle Mariners Navy/Aqua All That Full-Zip Hoodie
$37.49 with codeRegular: $49.99You Save: $12.50

Youth Seattle Mariners Navy/Aqua All That Full-Zip Hoodie

Youth Seattle Mariners New Era Navy The League 9Forty Adjustable Hat
$15.74 with codeRegular: $20.99You Save: $5.25

Youth Seattle Mariners New Era Navy The League 9Forty Adjustable Hat

Infant Seattle Mariners Navy Primary Logo T-Shirt
$11.24 with codeRegular: $14.99You Save: $3.75

Infant Seattle Mariners Navy Primary Logo T-Shirt

Youth Seattle Mariners Teal Team Trainer T-Shirt
$14.99 with codeRegular: $19.99You Save: $5.00

Youth Seattle Mariners Teal Team Trainer T-Shirt

Youth Seattle Mariners ISlide Pink Primary Logo Slide Sandals
$33.74 with codeRegular: $44.99You Save: $11.25

Youth Seattle Mariners ISlide Pink Primary Logo Slide Sandals

Youth Seattle Mariners Teal Alternate All Meshed Up T-Shirt
$14.99 with codeRegular: $19.99You Save: $5.00

Youth Seattle Mariners Teal Alternate All Meshed Up T-Shirt

Newborn & Infant Seattle Mariners Soft as a Grape Navy/Gray 2-Piece Body Suit
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Youth Seattle Mariners JH Design Navy/Gray Reversible Hooded Jacket
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$67.49 with codeRegular: $89.99You Save: $22.50

Youth Seattle Mariners JH Design Navy/Gray Reversible Hooded Jacket

Toddler Seattle Mariners Soft As A Grape Royal Cooperstown Collection Shutout T-Shirt
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Youth Seattle Mariners Navy Primary Team Logo T-Shirt
$14.99 with codeRegular: $19.99You Save: $5.00

Youth Seattle Mariners Navy Primary Team Logo T-Shirt

Youth Seattle Mariners Navy Team Color Wordmark Full-Zip Hoodie
$33.74 with codeRegular: $44.99You Save: $11.25

Youth Seattle Mariners Navy Team Color Wordmark Full-Zip Hoodie

Youth Seattle Mariners New Era Navy Team Truckered 9FORTY Snapback Hat
$14.99 with codeRegular: $19.99You Save: $5.00

Youth Seattle Mariners New Era Navy Team Truckered 9FORTY Snapback Hat

Youth Seattle Mariners Navy Logo Twill Fleece Pullover Hoodie
$29.99 with codeRegular: $39.99You Save: $10.00

Youth Seattle Mariners Navy Logo Twill Fleece Pullover Hoodie

Infant Seattle Mariners Navy/Aqua/Gray Born To Win 3-Pack Bodysuit Set
$22.49 with codeRegular: $29.99You Save: $7.50

Infant Seattle Mariners Navy/Aqua/Gray Born To Win 3-Pack Bodysuit Set

Newborn & Infant Seattle Mariners WinCraft 2-Pack Bib Set
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Sale: $14.39Regular: $23.99You Save: $9.60

Newborn & Infant Seattle Mariners WinCraft 2-Pack Bib Set

Youth Seattle Mariners New Era Blue 2017 Players Weekend 59FIFTY Fitted Hat
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Youth Seattle Mariners Navy Primary Logo T-Shirt
$14.99 with codeRegular: $19.99You Save: $5.00

Youth Seattle Mariners Navy Primary Logo T-Shirt

Toddler Seattle Mariners Navy Team Primary Logo T-Shirt
$11.99 with codeRegular: $15.99You Save: $4.00

Toddler Seattle Mariners Navy Team Primary Logo T-Shirt

Toddler Seattle Mariners Aqua/Navy Legacy Henley 3/4-Sleeve T-Shirt
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$16.49 with codeRegular: $21.99You Save: $5.50

Toddler Seattle Mariners Aqua/Navy Legacy Henley 3/4-Sleeve T-Shirt

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.