Boys T-Shirts & Polos

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6-12 months Age 1-2 Age 3-4 Age 5-6 Age 7-8 Age 9-10 Age 10-11 Age 11-12 Age 13 Age 13-14 Small Medium Large X-Large

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103 Products

  • Kids' Green Canterbury Ireland Rugby IRFU 2025/26 Elite Training T-Shirt from O'Neills.
    -47%
    Canterbury Kids' Ireland Rugby IRFU 2025/26 Elite Training T-Shirt Mallard Green / Darkest Spruce Marl
    £16.00 Regular Price £30.00
    £30.00
  • Bottle Green Lansdowne Kids' Ireland Celtic Printed Performance T-Shirt with an Embroidered Crest from O'Neill's.
    Lansdowne Kids' Ireland Celtic Sublimated Performance T-Shirt Bottle / White / Gold
    From £20.00
  • Kids' Black Under Armour UA Logo Wordmark T-Shirt from O'Neills.
    Under Armour Kids' UA Logo Wordmark T-Shirt Black / Titan Grey / White
    £15.00
  • Kids' Blue Under Armour UA Logo Wordmark T-Shirt from O'Neills.
    Under Armour Kids' UA Logo Wordmark T-Shirt Aegean Blue / White
    £15.00
  • Under Armour Kids' UA Tech™ 2.0 T-Shirt Black / Anthracite / White
    Under Armour Kids' UA Tech™ 2.0 T-Shirt Black / Anthracite / White
    £15.00
  • Under Armour Kids' UA Tech™ 2.0 T-Shirt
    Under Armour Kids' UA Tech™ 2.0 T-Shirt Lumos Lime / Black
    From £10.00 Regular Price £15.00
    £15.00
  • Under Armour Kids' UA Tech™ 2.0 T-Shirt
    Under Armour Kids' UA Tech™ 2.0 T-Shirt Boundless Blue / Black
    £10.00 Regular Price £15.00
    £15.00
  • Under Armour Kids' UA Tech™ Textured T-Shirt
    Under Armour Kids' UA Tech™ Textured T-Shirt Orange Bloc / Black
    From £10.00 Regular Price £17.00
    £17.00
  • Under Armour Kids' UA Tech™ Textured T-Shirt
    Under Armour Kids' UA Tech™ Textured T-Shirt Blue Haze / Black
    From £10.00 Regular Price £17.00
    £17.00
  • Under Armour Kids' UA Tech™ Textured T-Shirt Campus Ivy / White
    Under Armour Kids' UA Tech™ Textured T-Shirt Campus Ivy / White
    £16.00
  • Red and Navy Under Armour Kids' UA Tech™ Vent Jacquard T-Shirt from O'Neills
    Under Armour Kids' UA Tech™ Vent Jacquard T-Shirt Racer Red / Black
    From £14.00 Regular Price £20.00
    £20.00
  • Blue and Navy Under Armour Kids' UA Tech™ Vent Jacquard T-Shirt from O'Neills
    Under Armour Kids' UA Tech™ Vent Jacquard T-Shirt Blue Atlantis / Washed Navy
    From £14.00 Regular Price £20.00
    £20.00
  • Blue and white Under Armour Kids' UA Sportstyle T-Shirt from O'Neills
    Under Armour Kids' UA Sportstyle T-Shirt Blue Atlantis / White
    From £12.00 Regular Price £18.00
    £18.00
  • Kids' Green Under Armour UA Tech™ Vent Jacquard T-Shirt from O'Neills.
    Under Armour Kids' UA Tech™ Vent Jacquard T-Shirt Lumos Lime / Castlerock
    From £12.00 Regular Price £20.00
    £20.00
  • Kids' Red Under Armour UA Tech™ Vent Jacquard T-Shirt from O'Neills.
    Under Armour Kids' UA Tech™ Vent Jacquard T-Shirt Venom Red / Black
    From £12.00 Regular Price £20.00
    £20.00
  • Kids' Green Under Armour UA Challenger Training T-Shirt from O'Neills.
    Under Armour Kids' UA Challenger Training T-Shirt Rack Green / White
    From £10.00 Regular Price £14.00
    £14.00
  • Under Armour Kids' UA Tech™ Split Wordmark T-Shirt
    Under Armour Kids' UA Tech™ Split Wordmark T-Shirt Rack Green / White
    From £10.00 Regular Price £17.00
    £17.00
  • Black Kids' Jenson Polo Shirt with short sleeves by O’Neills.
    Kids' Jenson Polo Shirt Black
    From £15.38 Regular Price £20.50
    £20.50
  • Marine Kids' Jenson Polo Shirt from O'Neill's.
    Kids' Jenson Polo Shirt Marine
    From £15.38 Regular Price £20.50
    £20.50
  • Marine and Sky Kids' Jenson T-Shirt with short sleeves by O’Neills.
    Kids' Jenson T-Shirt Marine / Sky
    £12.75 Regular Price £17.00
    £17.00
  • Marine Kids' Jenson T-Shirt from O'Neill's.
    Kids' Jenson T-Shirt Marine / Royal
    £12.75 Regular Price £17.00
    £17.00
  • Marine and Red Kids' Jenson T-Shirt with short sleeves by O’Neills.
    Kids' Jenson T-Shirt Marine / Red
    £12.75 Regular Price £17.00
    £17.00
  • Marine and Maroon Kids' Jenson T-Shirt with short sleeves by O’Neills.
    Kids' Jenson T-Shirt Marine / Maroon
    £12.75 Regular Price £17.00
    £17.00
  • Marine and Emerald Kids' Jenson T-Shirt with short sleeves by O’Neills.
    Kids' Jenson T-Shirt Marine / Green
    £12.75 Regular Price £17.00
    £17.00
  • Marine and Amber Kids' Jenson T-Shirt with short sleeves by O’Neills.
    Kids' Jenson T-Shirt Marine / Amber
    £12.75 Regular Price £17.00
    £17.00
  • Black and Red Kids' Jenson T-Shirt with short sleeves by O’Neills.
    Kids' Jenson T-Shirt Black / Red
    £12.75 Regular Price £17.00
    £17.00
  • Black and Grey Kids' Jenson T-Shirt with short sleeves by O’Neills.
    Kids' Jenson T-Shirt Black / Dark Grey
    £12.75 Regular Price £17.00
    £17.00
  • Black and Green Kids' Jenson T-Shirt with short sleeves by O’Neills.
    Kids' Jenson T-Shirt Black / Green
    £12.75 Regular Price £17.00
    £17.00
  • Black and Amber Kids' Jenson T-Shirt with short sleeves by O’Neills.
    Kids' Jenson T-Shirt Black / Amber
    £12.75 Regular Price £17.00
    £17.00
  • O’Neills Kids' Aspire Polo Shirt Black
    O'Neills Kids' Aspire Polo Shirt Black / White
    From £20.50
  • O’Neills Kids' Aspire Polo Shirt Black
    O'Neills Kids' Aspire Polo Shirt Black / Red
    From £20.50
  • Black / Red Kids' Aspire T-Shirt from O’Neills featuring breathable mesh panelling.
    O'Neills Kids' Aspire T-Shirt Black / Red
    £17.00
  • Black / Red / White Kids' Odin T-Shirt from O’Neills
    O'Neills Kids' Odin T-Shirt Black / Red / White
    £17.00
  • Black / Dark Grey / White Kids' Odin T-Shirt from O’Neills
    O'Neills Kids' Odin T-Shirt Black / Dark Grey / White
    £17.00
  • Black / Amber Kids' Odin T-Shirt from O’Neills
    O'Neills Kids' Odin T-Shirt Black / Amber
    £17.00
  • Sky / Marine / White Kids' Odin T-Shirt from O’Neills
    O'Neills Kids' Odin T-Shirt Sky / Marine / White
    £17.00

You've seen 72 out of 103 products

We have a huge range of boy’s t-shirt and polos to choose from in an array of colours and patterns. A short sleeve t-shirt is ideal for PE classes, football training, exploring the outdoors and for everyday casual wear. Team with a pair of tracksuit bottoms for a sporty look.