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    Kids (Size 8+) Boys’ Short Sleeve Shirts

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    50 Results
    • New Arrival  Boys' UA HeatGear® Armour Up Short Sleeve   $20.99
      UA HeatGear® Armour Up Short Sleeve
      Boys’ Short Sleeve Shirt

      $20.99 CDN

    • New Arrival  Boys' UA Prove It On The Ice T-Shirt    $22.99
      UA Prove It On The Ice
      Boys’ Hockey Short Sleeve Shirt

      $22.99 CDN

    • New Arrival  Boys' UA Match Play Blocked Polo    $39.99
      UA Match Play Blocked
      Boys’ Polo Shirt

      $39.99 CDN

      3
    • New Arrival  Boys' UA Match Play Polo   $34.99
      UA Match Play
      Boys’ Polo Shirt

      $34.99 CDN

      12
    •  Boys' UA Star Wars Light Saber T-Shirt   $29.99
      UA Star Wars Light Saber
      Boys’ Short Sleeve Shirt

      $29.99 CDN

    •  Boys' UA Goal Hard T-Shirt    $25.99
      UA Goal Hard
      Boys’ Hockey Graphic T-Shirt

      $25.99 CDN

    •  Boys' UA Star Wars Born to Lead T-Shirt   $29.99
      UA Star Wars Born to Lead
      Boys’ Short Sleeve Shirt

      $29.99 CDN

    • New Arrival  Boys' UA Camo Fill Big Logo Short Sleeve T-Shirt   $25.99
      UA Camo Fill Big Logo
      Boys’ Graphic T-Shirt

      $25.99 CDN

    •  Boys' UA Star Wars Force Be With You T-Shirt   $29.99
      UA Star Wars Force Be With You
      Boys’ Short Sleeve Shirt

      $29.99 CDN

    • New Arrival  Boys’ UA Locker Short Sleeve T-Shirt   $21.99
      Boys’ UA Locker Short Sleeve
      Boys’ Short Sleeve Shirt

      $21.99 CDN

      2
    • New Arrival  Boys' Toronto Blue Jays UA Tech™ Blocked T-Shirt   $30.99
      Toronto Blue Jays UA Tech™
      Boys’ Baseball Short Sleeve Shirt

      $30.99 CDN

    • New Arrival  Boys' UA Star Wars Ships T-Shirt   $39.99
      UA Star Wars Ships
      Boys’ Short Sleeve Shirt

      $39.99 CDN

    •  Boys' UA Hockey T-Shirt    $22.99
      UA Hockey
      Boys’ Hockey Short Sleeve Shirt

      $22.99 CDN

    •  UA Canada Maple Leaf   $22.99
      UA Canada Maple Leaf
      Short Sleeve Shirt

      $22.99 CDN

    • New Arrival  Boys' UA Never Lose T-Shirt   $22.99
      UA Never Lose
      Boys’ Football Short Sleeve Shirt

      $22.99 CDN

    •  Boys' UA x Project Rock Blood Sweat Respect T-Shirt   $29.99
      UA x Project Rock Blood Sweat Respect
      Boys’ Short Sleeve Shirt

      $29.99 CDN

    • New Arrival  Boys' UA x Project Rock Brahma Bull T-Shirt   $29.99
      UA x Project Rock Brahma Bull
      Boys’ Short Sleeve Shirt

      $29.99 CDN

    • New Arrival  Boys' UA Hockey T-Shirt   $22.99
      UA Hockey
      Boys’ Short Sleeve Shirt

      $22.99 CDN

    • New Arrival  Boys' UA Diamond Logo T-Shirt   $22.99
      UA Diamond Logo
      Boys’ Baseball Short Sleeve Shirt

      $22.99 CDN

    •  Boys' SC30 Deep Space T-Shirt   $29.99
      UA SC30 Deep Space
      Boys’ Basketball Short Sleeve Shirt

      $29.99 CDN

    • New Arrival  Boys' UA x Project Rock Hardest Worker T-Shirt *Ships 12/20/2016*   $29.99
      UA x Project Rock Hardest Worker *Ships 12/20/2016*
      Boys’ Short Sleeve Shirt

      $29.99 CDN

    • New Arrival  Boys' UA Always Feared T-Shirt   $17.99
      UA Always Feared
      Boys’ Short Sleeve Shirt

      $17.99 CDN

    •  Boys’ UA HeatGear® Armour Short Sleeve Fitted Shirt   $20.99 to $27.99
      UA HeatGear® Armour Fitted Shirt
      Boys’ Football Short Sleeve Shirt

      $20.99 CDN - $27.99 CDN

    •  UA Canada Pride Moment   $22.99
      Canada Pride Moment
      Short Sleeve Shirt

      $22.99 CDN

      1
    • New Arrival  Boys' UA Star Wars Trooper T-Shirt   $34.99
      UA Star Wars Trooper
      Boys’ Short Sleeve Shirt

      $34.99 CDN

    • New Arrival  Boys' UA Composite Stripe Polo    $33.99
      UA Composite Stripe
      Boys’ Polo Shirt

      $33.99 CDN

      1
    •  Boys' UA Whitetail Graphic Short Sleeve T-Shirt   $19.99
      UA Whitetail Graphic
      Boys’ Hunting Short Sleeve Shirt

      $19.99 CDN

    • New Arrival  Boys' UA Silence The Crowd T-Shirt   $25.99
      UA Silence The Crowd
      Boys’ Soccer Short Sleeve Shirt

      $25.99 CDN

    • New Arrival  Boys’ UA Golazo Soccer Jersey   $24.99
      UA Golazo Soccer Jersey
      Boys’ Soccer Short Sleeve Shirt

      $24.99 CDN

    •  Boys' UA Swing Run Turn T-Shirt   $22.99
      UA Swing Run Turn
      Boys’ Baseball Short Sleeve Shirt

      $22.99 CDN

    • New Arrival  Boys’ UA Zone T-Shirt   $29.99
      UA Zone
      Boys’ Short Sleeve Shirt

      $29.99 CDN

    • New Arrival  Boys' Under Armour® Alter Ego DC Comics Fitted Baselayer   $39.99
      Under Armour® Alter Ego DC Comics Fitted Baselayer
      Boys’ Short Sleeve Shirt

      $39.99 CDN

    • New Arrival  Boys' UA Power In Pink® Never Back Down T-Shirt   $32.99
      UA Power In Pink® Never Back Down
      Boys’ Short Sleeve Shirt

      $32.99 CDN

    • New Arrival  Boys' UA Power In Pink® Armoured T-Shirt   $29.99
      UA Power In Pink® Armoured
      Boys’ Short Sleeve Shirt

      $29.99 CDN

    • New Arrival  Boys' SC30 Branded T-Shirt   $29.99
      SC30 Branded
      Boys’ Basketball Short Sleeve Shirt

      $29.99 CDN

    • New Arrival  Boys' SC30 Player T-Shirt   $32.99
      UA SC30 Player
      Boys’ Basketball Short Sleeve Shirt

      $32.99 CDN

    •  Boys' Star Wars Storm Trooper UA Compression Shirt   $44.99
      Star Wars Storm Trooper UA Compression
      Boys’ Short Sleeve Shirt

      $44.99 CDN

    • New Arrival  Boys' UA One Step Ahead T-Shirt   $25.99
      UA One Step Ahead
      Boys’ Running Short Sleeve Shirt

      $25.99 CDN

    • New Arrival  Boys' UA Football Jersey   $22.99
      UA Football Jersey
      Boys’ Football Short Sleeve Shirt

      $22.99 CDN

    •  Boys' UA Tech™ Big Logo Short Sleeve T-Shirt   $16.49 to $17.24
      UA Tech™ Big Logo
      Boys’ Short Sleeve Shirt

      $16.49 CDN - $17.24 CDN$21.99 CDN - $22.99 CDN

      38
    •  Boys' UA Tech™ Big Logo Hybrid T-Shirt   $22.49
      UA Tech™ Big Logo Hybrid
      Boys’ Short Sleeve Shirt

      $22.49 CDN$29.99 CDN

      1
    •  Boys' UA Match Play Blocked Polo    $29.99
      UA Match Play Blocked
      Boys’ Polo Shirt

      $29.99 CDN$39.99 CDN

      3
    •  Boys' UA Match Play Polo   $26.99
      UA Match Play
      Boys’ Polo Shirt

      $26.99 CDN$34.99 CDN

      12
    •  Boys' UA CoolSwitch Fitted Short Sleeve Shirt   $22.99 to $26.99
      UA CoolSwitch Fitted Short Sleeve
      Boys’ Short Sleeve Shirt

      $22.99 CDN - $26.99 CDN$34.99 CDN

    •  Boys' UA HeatGear® Armour Up Short Sleeve   $17.99
      UA HeatGear® Armour Up Short Sleeve
      Boys’ Short Sleeve Shirt

      $17.99 CDN$27.99 CDN

    •  Boys’ UA Super Hero Fitted Shirt   $22.49
      Under Armour® Alter Ego
      Boys’ Football Short Sleeve Shirt

      $22.49 CDN$39.99 CDN

      16
    •  Boys’ UA CoolSwitch Thermocline T-Shirt   $25.49
      UA CoolSwitch Thermocline
      Boys’ Fishing Short Sleeve Shirt

      $25.49 CDN$44.99 CDN

    •  Boys' UA Football Holiday T-Shirt   $17.99
      UA Football Holiday
      Boys’ Football Short Sleeve Shirt

      $17.99 CDN$22.99 CDN

    •  Boys' UA Scent Control Tech™ Short Sleeve    $29.99
      UA Scent Control Tech™
      Boys’ Hunting Short Sleeve Shirt

      $29.99 CDN$39.99 CDN

    •  Boys' UA Tech™ Big Logo Printed T-Shirt   $20.99
      UA Tech™ Big Logo Printed
      Boys’ Short Sleeve Shirt

      $20.99 CDN$27.99 CDN

      7