Alpinestars Nucleon KR-1 CELLi Insert

The extremely lightweight Nucleon KR-1 CELLi insert features an articulated back shell plate for flexibility and riding fit, plus an advanced micro-structure cell design for efficient impact energy absorption and high levels of airflow.

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 blend Cell Structure 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.

Horizontal flexion grooves for an adaptive fit in different riding positions.

Soft comfortable padding on the body side of the protector offers breathability and rider comfort.

Racing suit compatibility.