UA Storm technology repels water without losing breathability. Windproof materials and construction help protect you from the elements. Durable, three-layer fabric is breathable, quiet and soft to help keep you from distractions. Four-way stretch material moves better in every direction. A large 1/2 zip at the front allows for easy layering. Secure hand pockets with zipper. Adjustable bottom bungee hem for a secure fit. P It uses a fluorine-free water-repellent treatment.