Moving fast through the woods, a quick jump over the stream and you're off up the mountainside. When you're trail running and speed hiking you always give it max power. No matter what the weather. The Mens Mountain Pass Jacket from Jack Wolfskin protects you from rain and wind every step of the way. This weatherproof shell jacket is made for fast-paced endurance sports. It is very light, very waterproof and extremely breathable. So it's great when you work up a sweat pounding up those steep trails. And for an extra blast of fresh air, just open up the pit zips. If the weather improves and you no longer need it, it packs down small and can be stashed neatly in your pack. And thanks to the super light fabric, the whole thing weighs little more than 300 grams.