Moving at speed through the woods, one quick jump over the stream and you're off up the mountainside. When you're trail running and speed hiking you always give it your all no matter what the weather. The Mens Mountain Pass Jacket protects you from rain and wind all the way. This weatherproof shell jacket is made for fast–paced endurance sports. Jack Wolfskin's Texapore Infinity Flygrid fabric is lightweight, waterproof and extremely breathable, so it's great when you start to sweat on the trail. And for an extra blast of fresh air, you can open the pit zips for ventilation. If the weather improves and you no longer need it, the jacket packs down small for neat storage in your pack. And thanks to the super light fabric, the whole thing weighs little more than 300 grams.