From Everest and the jungles of Borneo to walking the dog our Thermals have been tried and tested and found to be superb. They are lightweight and non-bulky and keep your temperature perfectly regulated, which makes them ideal even when coming in from outside into the home or office. Wear them as Thermal Underwear or as Thermal Base Layers for outside activities. We provide Thermals in Silk and Bamboo, for Men and Women, as well as Children.