Double-layer fabric with an ultra-warm, brushed inside and a smooth, quick-drying outside Water-resistant woven overlays on the front for added protection from the elements An expandable center pocket at the waistband is water-resistant and keeps your phone safe without bouncing around The material wicks away sweat and dries very quickly 4-Way Stretch technology allows for better movement in every direction Elastic waistband with internal drawcord Side pocket Ankle zippers for easy on and off Reflective graphics for better visibility when running in low light The back Speedpocket comfortably fits most phones up to 15cm x 7cm.