The North Face Mens kilowatt Short 10% elastane Imported drawstring closure Machine Wash^Tumble Dry Abrasion resistant stretch-knit training shorts with breathable panels Bluesign Approved Fabric - Standard for environmental health & safety in the manufacturing process bluesign approved fabric Inseam: R 10.5" Fabric: Body: 73% nylon, 17% polyester, 10% elastane. Panels: 89% polyester, 11% elastane