A black rinse technical riding denim with knitted fabric construction & triple stitching for enhanced protection against abrasion & cuts. Features Inner liner on knee compartment for enhanced rider comfort Nucleon Flex Plus knee armor for high levels of impact protection Optional Bio-Flex hip armor available as an accessory upgrade Triple stitching runs along the entire length of the outer leg for superior strength & resistance against bursting Two pockets on front & back for secure & convenient storage Front zippered vents for high levels of cooling airflow Ergonomic cut on knees for enhanced rider comfort The following standards apply to this product Category II PPE EN17092-4:2020 – A class Level 1 EN1621-1:2012 Alpinestars Nucleon Flex Plus knee & Bio-Flex hip protectors (available as an accessory upgrade)