The Alpinestars Bionic Flex Knee Protector is an extremely lightweight, durable, and flexible knee guard designed to provide unparalleled comfort during off-road adventures. Featuring a breathable stretch mesh construction for a secure and snug fit, this knee protector offers an extremely comfortable slip-on design that saves time and effort. Integrated with Nucleon Flex Technology, the protector ensures excellent breathability and superior ventilation. The front panel is made from abrasion-resistant fabric, significantly enhancing durability. The knee protector is CE certified to EN1621-1-2012 Level 1 standards, ensuring top-notch safety and protection.