I bought some new cold weather clothing called Diamondown. I will have it in a few days.
From their web site: "All Diamondown™ products are made from Carbtex® fiber which was invented and patented by Dr. Frank McCullough. Diamondown™ represents a tremendous leap forward in thermal garments and is setting the new standard for insulated clothing. Diamondown™ not only effectively blocks convective heat transfer, but also uniquely blocks radiant heat transfer or 91% of the total body heat loss. This technology almost doubles the thermal resistance compared to any other polymer or natural product insulation such as Thinsulate™, wool, silk and Under Armour® ColdGear®."
Testimonials from their web page.
From their web site: "All Diamondown™ products are made from Carbtex® fiber which was invented and patented by Dr. Frank McCullough. Diamondown™ represents a tremendous leap forward in thermal garments and is setting the new standard for insulated clothing. Diamondown™ not only effectively blocks convective heat transfer, but also uniquely blocks radiant heat transfer or 91% of the total body heat loss. This technology almost doubles the thermal resistance compared to any other polymer or natural product insulation such as Thinsulate™, wool, silk and Under Armour® ColdGear®."
Testimonials from their web page.