Boys Kids' Shop by Size for Training | Under Armour

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Shop by Category
Shop by Sport
Shop by Collection
- UA Meridian
- UA Unstoppable
- HeatGear®: Keeps You Cool
- UA Vanish: Performance Apparel
- ColdGear®: Keeps You Warm
- Project Rock
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- College Fan Gear
Accessories
- Backpacks & Bags
- Crossbody & Waist Bags
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Featured
Boys
Girls
Shop by Sport
- Baseball
- Basketball
- Fishing
- Flag Football
- Football
- Golf
- Softball
- Soccer
- Volleyball
Shop by Size
- Big Kids (8-20)
- Little Kids (4-7)
- Toddler (2T - 4T)
- Infant (12M - 24M)
- Newborn (0M - 9M)

Featured
- New Arrivals
- Sunday Brights Ft. Spotlight Pro
- UA Phantom Fore
- UA Echo
- Footwear Under $100
Shop by Category
- Sandals & Slides
- Cleats
- Sportswear Shoes
- Boots
- Wide Shoes
Shop by Gender
- Men's Shoes
- Women's Shoes
- Boys' Shoes
- Girls' Shoes
Shop by Sport
- Baseball
- Basketball
- Fishing
- Football
- Golf
- Hiking & Hunting
- Lacrosse
- Running
- Soccer
- Military & Tactical
- Track & Field
- Training
Shop by Collection

Men
Women
Kids
Shoes

Featured
Men
- Accessories
- Jackets & Vests
- Pants & Leggings
- Shirts & Tops
- Shoes
- Shorts
Women
Boys
Girls
- Accessories
- Jackets
- Pants & Leggings
- Shirts & Tops
- Shoes
- Shorts
- Sports Bras