You're out in the chilly morning, heading up the trail with a spring in your step. The Mens Chilly Morning Jacket from Jack Wolfskin is a simple, no-frills jacket. It is waterproof, windproof and warm. Simple as that. It is also one of the lightest jackets in its class. This jacket is a winning combination of weather protection fabric and warm synthetic fibre insulation. Bring on the winter months!