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Alpinestars Nucleon Flex Pro Back Protector Insert

Regular price £85.49
Regular price £89.99 Sale price £85.49
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Alpinestars - Nucleon Flex Pro Back Protector Insert


The extremely lightweight Level 2 CE and UKCA certified Nucleon Flex Pro Back Protector Insert features a highly ventilated hybrid of Nucleon Cell and Nucleon Flex protectors for the optimum balance of force dispersion and flexibility, with a soft-touch 3D mesh liner for enhanced rider comfort.


  • Back Protector: EN 1621-2:2014 Level 2 (T+ & T-)
  • CE Level 2 – Back


  • The super lightweight back protector insert is developed in three waist-to-shoulder dimensions in order 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 centre towards the outside providing the perfect 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