Alpinestars Nucleon Kr-1 Celli Back Protector 

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.

CONSTRUCTION

• 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.

KEY FEATURES

• 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.