Specially designed for winter treks, the SHELTER JKT is a WR-Vantage (Water Repellent) 2-Layer Jacket of PrimaLoft® Sport that has exactly what you need in demanding terrain: its weather protective outer shell is robust, waterproof and breathable and warm without being too heavy, and the insulation padding is designed according to the natural body heat. Different padding to ensure the body gets the amount of insulation it requires