Insulative jacket designed for moving fast and carrying light in cold conditions. Lightweight and easily packable, the THERMOSHELL insulated men\'s jacket features a water-resistant and 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, and zoned 4 way stretch panels, allow for unrestricted movement while running and moving fast outdoors. View Thermoshell Pro Care Instructions