* Developed in three waist-to-shoulder dimensions to cover all body sizes
* High performance polymeric material Cell and Nucleon Flex structures for optimized flexibility and excellent weight saving properties
* The back protector’s design changes from the center towards the outside, providing a balance between energy absorption and flexibility
* Soft, comfortable 3D mesh on the body side of the protector offers breathability and rider comfort
* Snap button compatibility for quick and easy use with Alpinestars suits and jackets
* Rigorously tested and certified to T+ & T for proven performance in extreme temperatures
* Back Protector: EN 1621-2:2014 Level 2 (T+ & T-)
The back protector insert is a full‐length back protector, about 22% longer than regular back protector inserts.
The Nucleon Flex Pro is compatible with all Alpinestars’ sport and touring jackets that have been released since Spring 2022, as all jackets have a double pocket to insert either a regular or longer back protector insert.
