The Sitka Jetstream Jacket - Men's is a soft shell jacket for hiking and climbing through windy weather. When the trail moves up the mountain, protect yourself from the swift changes in weather with GORE-TEX WINDSTOPPER. The soft and quiet fabric prevents the wind from sending chills up your spine. Treated with a durable water repellent finish, it also sheds light rain or snow, so you can push to the peak before heading back to camp or car.