What do you need from your go-to running shorts? They need to be light and stretchy to let you move and have a liner to keep you cool and dry. Done. Ultra-light stretch-woven fabric for totally unrestricted movementInternal mesh liner helps moisture escape&adds breathability 4-way stretch material moves better in every directionMaterial wicks sweat&dries really fast Updated expandable center-back pocket is water-resistant&keeps your phone secure with no bouncing Encased elastic waistband with internal drawcordReflective details for low-light run