Alpinestars: Nucleon Flex Pro Technology protector embedded in the lining for comfort and performance.Two-part construction ensures the protector remains in place while preventing it from slipping while riding.This protector has been specifically designed to absorb and dissipate the higher energy forces associated with E-Bike riding, thus effectively reducing the impact forces transmitted to the body.Highly abrasion-resistant textile front panel for durability.Incorporates a strategically-positioned viscoelastic D-Nut to protect joint extremity and ensure an optimal balance between stability and comfort.Thermoformed padding for additional rider comfort and side protection.Main chassis is constructed with a stretchable and breathable mesh for superior levels of cooling airflow.Hook and loop strap closures and silicon anti-slip strips on the upper and lower cuffs ensure the protector remains in position.Pre-curved, ergonomic design for optimized performance in various riding positions.According to European statutory law the CE mark is a conformity requirement for the marketing of this product. The following standards apply to this product:Elbow Protector – EN 1621-1:2012 Level 2.