PrimaLoft® insulating material
This synthetic insulation material mimics the warmth-providing properties of down, but in a hypoallergenic form. And unlike down, the material originally developed for the U.S. Army does not absorb water, is easy to pack and lightweight. The fabric itself has millions of air pockets that trap and retain body heat. This also makes it very suitable as a base layer and a perfect match for motorbike clothing.
There are three different categories of PrimaLoft®: Gold, Silver and Black, of course with several sub-categories depending on your warmth needs. PrimaLoft® Gold is the brand's flagship product, offering you the warmest and most breathable layer of insulation. As mentioned above, the hydrophobic properties allow for temperature regulation when needed and the ability to retain heat when it gets colder.