BTU AND HELIX JACKET TECH
The exterior shell is a 2-way stretch 85% Nylon, 15% Spandex blend. The little bit of stretch allows for a lot of fast movement while the Nylon creates reliable durability and moisture protection.
The jacket fill is specialized polyester infused with Graphene. The thermal properties of Graphene increase the warmth level that the polyester insulation gives you. This lightweight fill creates thousands of air pockets generated by the fibers that retain heat to keep you warm. The Graphene properties dramatically improve its performance to keep you warm when it’s cold and to keep you fresh when the going gets active.