Details Approx. 1.25" elastic waistband with a drawcord for an adjustable fit Lucy Flex technology for a stretchy and lightweight fabric that dries quickly during high sweat activities Hidden envelope key pocket inside brief lining (pocket approx. 2.25"W X 3.0"H) Mesh brief liner for increased comfort and mobility, and excellent ventilation so skin stays cool and dry Slightly scalloped hemline for increased range of motion Color blocking for modern style Reflective bar near left hem of shorts for increased visibility in low-light settings Fabric Main Body: (86% Polyester, 14% Spandex), a smooth, stretchy fabric with moisture-wicking properties Liner: (89% Polyester, 11% Spandex), mesh fabric for superior breathability and comfort