These FR pants have just the right amount of stretch and room to move during the workday. Mid weight 9-ounce, FR canvas: 98 percent cotton/2 percent spandex • original fit • built with rugged flex to bend and stretch with you as you move • mid front rise; sits slightly below the waist • higher back rise for added coverage • comfortable fit through hip and thigh • arc-resistant button closure at waist • brass zipper fly with Nomex FR zipper tape • two reinforced back pockets • leg openings fit over boots • cell phone and utility pocket • Carhartt FR label sewn on back pocket; NFPA 2112/cat 2 label sewn on waistband • meets the performance requirements of NFPA 70E and is UL Classified to NFPA 2112