Boys Extended Sizes in Red | Under Armour

Featured
- New Arrivals
- Valentine's Day Edit
- Back to Gym
- Wide Leg Pants
- Everyday Essentials
- Short & Tall
- Plus Size
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- Baselayer
- Hoodies & Sweatshirts
- Jackets & Vests
  - Jackets
  - Vests
- Leggings
- Matching Sets
- Shirts & Tops
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- Shorts
- Sports Bras
- Sweatpants & Joggers
- Underwear
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- Basketball
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- Running
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Accessories

Featured
Boys
Girls
- Accessories
- Baselayer
- Hoodies & Sweatshirts
- Jackets
- Pants & Leggings
  - Athletic Pants, Sweatpants & Joggers
  - Leggings
- Shirts & Tops
  - Graphic T-shirts
  - Hoodies & Sweatshirts
  - Long Sleeves
  - Short Sleeves
  - Tank Tops & Sleeveless
- Shoes
  - Basketball
  - Running & Training
  - Sandals & Slides
  - Softball
  - Sportswear
- Shorts
- Sports Bras
Shop by Sport
- Hockey
- Baseball
- Basketball
- 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
- Release Calendar
- Velociti Running Shoes
- Shoes Under $100
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- Sandals & Slides
- Cleats
- Lifestyle Shoes
- Boots
- Wide Shoes
- Running & Training
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- Men's Shoes
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- Boys' Shoes
- Girls' Shoes
Shop by Sport
- Baseball
- Basketball
- Fishing
- Football
- Golf
- Hiking & Hunting
- Lacrosse
- Running
- Soccer
- Military & Tactical
- Track & Field
- Training
- Volleyball
Shop by Collection

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