Boys Kids' Shop by Size for Training | Under Armour

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- Baselayer
- Hoodies & Sweatshirts
- Jackets & Vests
  - Jackets
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- Joggers & Sweatpants
- Pants & Leggings
  - Casual Pants
  - Golf Pants
  - Joggers & Sweatpants
  - Leggings
- Shirts & Tops
  - Graphic T-Shirts
  - Hoodies & Sweatshirts
  - Long Sleeves
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- Shoes
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Shop by Sport
Shop by Collection
- UA Halo
- Curry Brand
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- HeatGear®: Keeps You Cool
- ColdGear®: Keeps You Warm
- UA Icon
- Project Rock
- UA Freedom
- College Fan Gear
Accessories

Featured
- New Arrivals
- Release Calendar
- Velociti
- UNLESS
- Curry Series 7
- D. Fox 2
- Shoes Under $100
Shop by Category
- Sandals & Slides
- Cleats
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- Boots
- Wide Shoes
Shop by Gender
- Men's Shoes
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Shop by Sport
- Baseball
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- Training
Shop by Collection
- UA Halo
- UA SlipSpeed™
- Curry Brand
- D. Fox 2
- UA Infinite
- UA Phantom
- Project Rock
- Bryce Harper

Featured
- Apparel Under $25
- Shoes Under $75
Men
- Accessories
- Jackets & Vests
- Pants & Leggings
- Shirts & Tops
- Shoes
- Shorts
- Underwear
Women
Boys
Girls
- Accessories
- Pants & Leggings
- Shirts & Tops
- Shoes
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- Sports Bras