Alpinestars Nucleon Flex Pro Back Protectors Inserts

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-).