Enjoy a wilderness walk without worrying about the wind and showers. The Jack Wolfskin Men's Lava Rock 3-in-1 Jacket is a combination jacket with an inner gilet. The outer jacket is made from Function 65 cotton hybrid and has a nice, rugged feel. It offers basic protection from the wind, shrugs off light showers and gives you first class wear comfort.Inside, there is a windproof, warmly insulated gilet, which is docked with the outer jacket via a System Zip. The gilet keeps your torso nice and warm. And if you get too warm, simply unzip the two components and wear the outer jacket or gilet on their own.