When your winter walk turns into a speed hike, you'll be glad you're wearing the VIKING SKY. This 3-in-1 combo has a sporty design and comes with an extra portion of warmth. The TEXAPORE hardshell jacket is waterproof and windproof, and inside there's a warm, insulated windshell. The two jackets can be zipped together using the system zip. The shell is extra robust and protects you from the rain, snow and wind. It is also very breathable, so you'll feel great in it all day long - no matter what challenges you set yourself. When the sun comes out, simply stash the outer jacket in your pack and keep going in the windshell - lighter and faster, but still warm.