UA Storm technology repels water without compromising breathability. Windproof materials and construction protect you from the elements. Durable, three-layer fabric is breathable, quiet and soft so it won't disturb you. 4-Way Stretch technology allows free movement in every direction. Practical front 1/2 zip for easy layering. Bottom hem adjustment with an elastic band for secure and customizable wearing. Water-repellent treatment without fluorine.