Aramid Reinforced DenimFeatures:Relaxed American fit with classic 5 pocket design12 oz Heavy duty stretch denimYKK® zippers throughoutCE Level 2 approved armor in knees and hipsTwo stage adjustable knee armor heightAramid Fiber lined front and back down past knee levelFull Flex stretch panel at the back yoke for greater mobility in riding position WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov This warning is being provided to comply with the State of California's Proposition 65.