Kids’ Innerwear & HEATTECH Thermals

Keep little adventurers warm and comfortable this season with soft innerwear and the unmatched performance of HEATTECH. Our revolutionary bio-warming material uses moisture released by the body to generate heat when it's needed most. Choose from insulating kids' thermal tops available with three levels of HEATTECH performance and soft cotton layers.

T-Shirts & Tops

Whether they're staying in or heading out, make sure little explorers remain cosy in any weather thanks to HEATTECH. These innovative thermal tops come in a range of grades offering varying levels of heat. Opt for HEATTECH Jersey for everyday comfort inside or out. Choose HEATTECH Extra Warm for those days when the chill won't stop biting. For really challenging temperatures, go for HEATTECH Ultra Warm - 2.2x thicker and warmer than regular HEATTECH Jersey for high-performance thermals you can really rely on.

Trousers & Leggings

Discover HEATTECH, the innovative bio-warming technology that keeps kids warm in any weather. Our range of trousers and leggings for kids come in a range of styles and sizes, with multiple grades of HEATTECH offering varying levels of heat.


Keep little toes warm and cosy during the colder months with our innovative socks for kids, with our bio-warming, thermal technology that uses moisture released by the body to generate heat when it's needed most.


Our range of warming accessories for kids includes cosy gloves and hats, all with our innovative thermal HEATTECH technology that helps to generate heat and keep you warm. Choose from plain designs or try one of our vibrant collaborative prints.