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.