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

Seattle Mariners Majestic Youth Official Cool Base Jersey - Navy

Ken Griffey Jr. Seattle Mariners Majestic Youth Alternate Official Cool Base Player Jersey - Aqua
Sale: $40.19Regular: $59.99You Save: $19.80

Ken Griffey Jr. Seattle Mariners Majestic Youth Alternate Official Cool Base Player Jersey - Aqua

Most Popular in Jerseys
Seattle Mariners Newborn & Infant Everyday Fan Three-Pack Bodysuit Set - Navy/Aqua/Gray
$22.49 with codeRegular: $29.99You Save: $7.50

Seattle Mariners Newborn & Infant Everyday Fan Three-Pack Bodysuit Set - Navy/Aqua/Gray

Most Popular in Kids
Seattle Mariners Newborn & Infant Dugout Dude Bodysuit, Bib & Booties Set - Navy/Aqua
Almost Gone!
Seattle Mariners New Era Youth The League 9Forty Adjustable Hat - Navy
$15.74 with codeRegular: $20.99You Save: $5.25

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

Seattle Mariners Majestic Newborn & Infant Cool Base Romper Jersey - White
Sale: $20.99Regular: $34.99You Save: $14.00

Seattle Mariners Majestic Newborn & Infant Cool Base Romper Jersey - White

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

Seattle Mariners Toddler Primary Team Logo T-Shirt - Navy

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

Seattle Mariners Youth Team Color Wordmark Full-Zip Hoodie - Navy

Seattle Mariners New Era Infant My 1st 9TWENTY Adjustable Hat - Navy
$14.99 with codeRegular: $19.99You Save: $5.00

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

Seattle Mariners Soft as a Grape Newborn & Infant 2-Piece Body Suit - Navy/Gray
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Seattle Mariners Soft As A Grape Toddler Cooperstown Collection Shutout T-Shirt - Royal
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Seattle Mariners Youth Primary Logo Pullover Hoodie - Navy
$37.49 with codeRegular: $49.99You Save: $12.50

Seattle Mariners Youth Primary Logo Pullover Hoodie - Navy

Ken Griffey Jr. Seattle Mariners Majestic Youth Game Tradition Name & Number V-Neck T-Shirt - Cream/Navy
$26.24 with codeRegular: $34.99You Save: $8.75

Ken Griffey Jr. Seattle Mariners Majestic Youth Game Tradition Name & Number V-Neck T-Shirt - Cream/Navy

Most Popular in T-Shirts
Seattle Mariners JH Design Youth Reversible Hooded Jacket - Navy/Gray
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$67.49 with codeRegular: $89.99You Save: $22.50

Seattle Mariners JH Design Youth Reversible Hooded Jacket - Navy/Gray

Seattle Mariners Stitches Youth Quarter-Zip Pullover Jacket - Heathered Charcoal
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Seattle Mariners Youth All That Full-Zip Hoodie - Navy/Aqua
$37.49 with codeRegular: $49.99You Save: $12.50

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

Seattle Mariners New Era Youth On-Field Sport Knit Hat - Navy
$17.99 with codeRegular: $23.99You Save: $6.00

Seattle Mariners New Era Youth On-Field Sport Knit Hat - Navy

Seattle Mariners Under Armour Youth MK-1 Performance Shorts - Navy
$26.24 with codeRegular: $34.99You Save: $8.75

Seattle Mariners Under Armour Youth MK-1 Performance Shorts - Navy

Seattle Mariners Soft as a Grape Youth Cotton Crew Neck T-Shirt - Aqua
$16.49 with codeRegular: $21.99You Save: $5.50

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

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

Seattle Mariners Infant Primary Logo T-Shirt - Navy

Seattle Mariners Toddler Little Hitter V-Neck T-Shirt & Shorts Set - White/Navy
$23.99 with codeRegular: $31.99You Save: $8.00

Seattle Mariners Toddler Little Hitter V-Neck T-Shirt & Shorts Set - White/Navy

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

Seattle Mariners Toddler Team Primary Logo T-Shirt - Navy

Seattle Mariners Youth Distressed Logo T-Shirt - Navy Blue
Almost Gone!
$14.24 with codeRegular: $18.99You Save: $4.75

Seattle Mariners Youth Distressed Logo T-Shirt - Navy Blue

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

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

Seattle Mariners Toddler Distressed Mascot T-Shirt - Navy Blue
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$14.24 with codeRegular: $18.99You Save: $4.75

Seattle Mariners Toddler Distressed Mascot T-Shirt - Navy Blue

Seattle Mariners Majestic Youth At the Game T-Shirt - Navy
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Sale: $11.99Regular: $19.99You Save: $8.00

Seattle Mariners Majestic Youth At the Game T-Shirt - Navy

Seattle Mariners New Era Youth 2017 Players Weekend 59FIFTY Fitted Hat - Blue
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Seattle Mariners Youth Big Logo Scuff Slippers
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Sale: $10.00Regular: $19.99You Save: $9.99

Seattle Mariners Youth Big Logo Scuff Slippers

Seattle Mariners Stitches Youth Logo Button-Down Jersey - Navy
Sale: $24.00Regular: $47.99You Save: $23.99

Seattle Mariners Stitches Youth Logo Button-Down Jersey - Navy

Youth Kids Seattle Mariners Jerseys, T-shirts, Hats

Find the perfect fit for the upcoming 2019 season and shop at Lids for the latest kids Kids Seattle Mariners jerseys and apparel. Lids has the best selection of Kids Seattle Mariners youth T-shirts, hats, hoodies, jackets and more. Ensure your youngsters have the perfect Kids Seattle Mariners outfits for gameday. Little ladies can show off their peppy fandom with Kids Seattle Mariners cheerleader sets and cute tops, while boys can browse from a variety of hats, tees, and Kids Seattle Mariners youth jerseys. Lids even has Kids Seattle Mariners gear for the littlest fan, Kids Seattle Mariners bodysuits, tees, caps, and more for the newborns in your life. Visit Lids this season for all Kids Seattle Mariners youth apparel.