Designed for intense mountain pursuits where weight and breathability are key, Pertex® Shield fabrics allow you to move fast and stay comfortable. The versatile 2, 2.5 and 3-layer constructions combine lightweight face fabrics with waterproof, windproof and breathable membranes. A durable water repellent (DWR) finish applied to the face fabric sheds rain and snow, which helps to maintain breathability.