An ergonomic insert optimised for performance riding, the lightweight Nucleon KR-Cell CiS Protector incorporates an advanced micro-structure cell design for efficient impact energy absorption and high levels of airflow.

• High performance, super lightweight track and race protector featuring Nucleon Cell technology.


• Four buttons ensure a secure engagement with the Alpinestars Slimfit Jacket.


• The double-layered shell plate is constructed from a high performance polymeric material blend for optimised flexibility and excellent weight saving properties.


• The chest protector’s structural design changes from the centre towards the outside and provides the perfect balance between force dispersion and energy absorption.


• Unique Cell microstructure designed for advanced energy absorption, adaptivity, maximum breathability and airflow.


• Ergonomic protection plate contours to the natural body line ensuring an optimum fit while riding.


• Soft comfortable air-mesh on the body side of the protector offers maximum breathability and rider comfort


• CE Level 2 Protection

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