Nylon,PolyesterImportedElastic closureBrooks Apparel Size ChartKeep running in the high-performance Brooks? Cascadia7 2-in-1 Running Shorts.Semi-fitted cut follows the contours of the body.Lightweight ripstop shell with a sweat-wicking mesh brief liner for all-day comfort.Elastic waistband with interior drawstring. Back-left zip pocket with drainage port. Secure envelope pocket at right hip. Reflective elements increase visibility during low-light conditions. Main: 79% nylon, 21% spandex;Lining: 100% polyester. Hand wash, line dry. Imported. Measurements: Waist Measurement: 32 in Outseam: 17 in Inseam: 7 in Front Rise: 10 in Back Rise: 17 1?2 in Leg Opening: 25 in Product measurements were taken using size MD, inseam 7.