A mid-layer designed for the coldest days, the Zinal Jacket from Ortovox provides all-around protection and warmth. Swisswool insulation is used in varying weights to provide the ideal warmth where your body needs it most. It is warmer in the front and upper sleeve area, with a slightly lighter fill in the hood and lower sleeves for ideal heat distribution. The back is flexible thanks to a 100% Merino wool lining.