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CALUM Boys Blue Base Layer set

Was £34.99

Save 71%

Special Price: £9.99

Out Of Stock

Youth Range
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Was £34.99

Save 71%

Special Price: £9.99

Product Description

The Calum boys' thermal base layer set is warm, protective and very comfortable. Whether you are heading off to the slopes on a family skiing holiday or just want to make sure that your kids are warm when playing in the park, thermal underwear is an excellent choice.

The Calum thermal top and bottoms work to trap in body heat, keeping them protected from low temperatures, without feeling overheated. Plus, these thermal base layers also benefit from an antibacterial coating, which will keep your kids feeling fresh. For extra comfort, there is also an elasticated waistband too.



We have a fantastic line of base layer sets and separates available for both boys' and girls' here at Trespass. Ideal for wearing underneath their outdoor outfit, our base layers are made using high-quality and soft materials for comfort and durability.

Returns Policy

Please note that our returns policy for products such as base layers and swimwear differs from other products. These items are classed as ‘undergarments' and for hygiene reasons are non-returnable and will not be accepted back unless faulty'

Technical Rating

Antibacterial coating Yes


  • Boys' thermal base layer set
  • Yarn dye stripes
  • Branded waistband
  • Ultra soft & comfortable
  • Please note that these products are classed as undergarments and for hygiene reasons are non-returnable unless faulty.

Fabric Composition & Care

  • 50% Cotton / 25% Viscose / 25% Polyester
  • Rib
  • 98% Cotton / 2% Elastane

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