Boys Kids' Shop by Size for Training | Under Armour Canada

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Gift Guide
Spring Sports

Featured
- New Arrivals
- Baseball Spring Training
- Valentine's Best Sellers
- Compression Shop
- Everyday Essentials
- Back to Gym
- Big & Tall
Shop by Category
- Baselayer
- Hoodies & Sweatshirts
- Jackets & Vests
  - Jackets
  - Vests
- Joggers & Sweatpants
- Matching Sets
- Pants & Leggings
- Shirts & Tops
  - Graphic T-Shirts
  - Hoodies & Sweatshirts
  - Long Sleeves
  - Polo Shirts
  - Short Sleeves
  - Tank Tops & Sleeveless
- Shoes
- Shorts
- Underwear & Undershirts
Shop by Sport
Shop by Collection
- UA Halo
- Curry Brand
- UA Unstoppable
- UA Vanish
- HeatGear®: Keeps You Cool
- ColdGear®: Keeps You Warm
- UA Icon
- Project Rock
Accessories

Featured
Boys
Girls
- Accessories
  - Backpacks & Bags
  - Beanies & Cold Weather Gear
  - Equipment
  - Hats & Headbands
  - Lunch Boxes
  - Socks
  - Sport Gloves
  - Sunglasses
  - Water Bottles & Coolers
- 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
Shop by Sport
- Hockey
- Baseball
- Basketball
- Flag Football
- Football
- Golf
- Softball
- Soccer
- Volleyball
Shop by Size
- Big Kids (8-20)
- Little Kids (4-7)
- Infant (12M - 24M)
- Newborn (0M - 9M)