Boys Extended Sizes for Sportswear | Under Armour

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- Accessories
  - Backpacks & Bags
  - Beanies & Cold Weather Gear
  - Equipment
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- Baselayer
- Dresses & Skorts
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- One Piece & Sets
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  - Athletic Pants, Sweatpants & Joggers
  - Leggings
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  - Graphic T-shirts
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  - Long Sleeves
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  - Tank Tops & Sleeveless
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- Shorts
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Shop by Sport
- Baseball
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Shop by Size
- Big Kids (8-20)
- Little Kids (4-7)
- Toddler (2T - 4T)
- Infant (12M - 24M)
- Newborn (0M - 9M)