Expandable center-back waistband pocket is water-resistant keeps your phone secure, with no bouncing Ultralight, stretch-woven fabric for totally unrestricted movement Built-in brief for added coverage support 4-way stretch material moves better in every direction Material wicks sweat dries really fast Laser perforations for added ventilation Soft knit waistband with internal drawcord for a secure fit Shaped, side-vent hem Fitted: Streamlined fit that?s not too tight or too loose. Style #: 1383269 Reflective logo Back Speedpocket fits most phones comfortably, up to 6" x 3" Inseam: 7" Pockets: Yes 88% Polyester/12% Elastane waist 16" flat 13" rise