Alpinestars Nucleon Flex Pro

The extremely lightweight Level 2 CE and UKCA Nucleon Flex Pro protective vest is made from a highly ventilated combination of Nucleon Cell and Nucleon Flex protectors, providing an optimal balance of energy transfer and flexibility, along with a split Nucleon Flex Pro chest protector featuring a perforated soft-touch mesh chassis for enhanced rider comfort.

The Cell and Nucleon Flex structures, made from high-performance polymers, ensure optimized flexibility and excellent weight-reducing properties. The design of the back protector transitions from the center outward, offering the perfect balance between energy absorption and flexibility.

The unique microstructure of the Nucleon Flex Pro chest protector is designed for advanced energy absorption, adaptability, maximum breathability, and airflow. Soft, comfortable padding on the body side of the protector provides breathability and rider comfort.

An adjustable elastic waistband ensures a secure fit. The vest has been rigorously tested and certified according to T+ & T for proven performance in extreme temperatures. Back protector: EN 1621-2:2014 Level 2 (T+ & T-). Split chest protector: EN 1621-3:2018 Level 2 (T+ & T-).