This uses the Viloft original fibres, and will provide the wearer with thermal protection down to -5°C. This range is suitable for various outdoor activities where thermal underwear is preferred instead of heavy clothing.
Again, Viloft original fibres are brushed on the inside to provide that extra degree of warmth. This range is recommended for people who will be in environments that are constantly below -1°C down to -15°C.
Mega
This is again made from Viloft original fibres, but is super brushed. It is also thicker than the two levels above. The megatherm range is ideal for extreme climates, where temperatures are between -15°C down to as low as
-25°C.