Boys Extended Sizes in White | Under Armour Canada

New Arrivals
- Men
- Women
- Kids
- Shoes
Featured
Gift Guide
Winter Sports

Featured
- New Arrivals
- Top Gifts
- Après Ski
- Hoodie SZN
- Gear That Keeps You Warm
- Plus Size
- Short & Tall
- Up To 40% Off Outlet
Shop by Category
Shop by Sport
- Basketball
- Flag Football
- Golf
- Hiking & Outdoor
- Pickleball & Tennis
- Running
- Softball
- Training
- Volleyball
- Yoga & Pilates
Shop by Collection
- UA Halo
- UA Meridian
- UA Unstoppable
- UA Vanish
- HeatGear®: Keeps You Cool
- ColdGear®: Keeps You Warm
- UA Icon
- Project Rock
Accessories

Featured
- New Arrivals
- Top Gifts
- Curry Brand
- Footwear Under $105
- Up To 40% Off Outlet
Shop by Category
Shop by Gender
- Men's Shoes
- Women's Shoes
- Boys' Shoes
- Girls' Shoes
Shop by Sport
- Baseball
- Basketball
- Football
- Golf
- Hiking & Hunting
- Lacrosse
- Running
- Soccer
- Military & Tactical
- Track & Field
- Training
- Volleyball
Shop by Collection

Top Gifts
Gift Ideas
- The Starting Line Up
- Hoodie SZN
- MVP ft. Baselayer
- Cozy Gifts
- Footwear Under $105
- Matching Sets
Gifts By Price

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