Insulative jacket designed for moving fast & carrying light in cold conditions. Lightweight & easily packable, the THERMOSHELL insulated men's jacket features a water-resistant & windproof outershell for protection against the elements. The PRIMALOFT Thermoplume* fill delivers increased warmth in the coldest conditions. The synthetic material boasts hydrophobic qualities, delivering the loft of down but retaining warmth even when wet. Narrow quilting on the sides of the jacket, & zoned 4 way stretch panels, allow for unrestricted movement while running & moving fast outdoors. View Thermoshell Pro Care Instructions