The UA Outrun The Storm series isn't just water-resistant—it's super-water-resistant, meaning it protects better and lasts longer than other run rain gear. And it's more stretchy and comfortable, so you'll be more focused. UA Storm technology repels water without sacrificing breathability. Wind-resistant construction protects you from the elements. Durable, lightweight stretch-woven fabric provides enhanced mobility & comfort. 4-way stretch material moves better in every direction. Updated, expandable center-back pocket is water-resistant & keeps your phone secure, with no bouncing. Soft knit waistband with internal drawcord for a secure fit. Ankle zips for easy on/off. Uses a fluorine-free water repellent treatment.