Once you run with UA Speedpocket bottoms, you'll wonder how you ever ran without them. The pocket expands to hold even a plus-sized phone, keeps it secure, and won't let it bounce. If you run with a phone, you need this. Ultra-light, stretch-woven outer fabric for totally unrestricted movement Built-in Iso-Chill compression shorts disperse body heat, making it feel cool to the touch 4-way stretch material moves better in every direction Material wicks sweat & dries really fast Updated, expandable center-back pocket is water-resistant & keeps your phone secure, with no bouncing Soft knit waistband with internal drawcord & stash pocket with key ring Shaped hem with side ventil