Alpinestars Nucleon Kr-Cell Back Protector Insert

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• Super lightweight back protector insert in three waist-to-shoulder dimensions to cover all body sizes
• Triple segmented back shell plate is constructed from a high-performance polymeric material blend for optimized flexibility and excellent weight saving properties
• Structural design from center towards the outside 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 curve of the back ensuring optimum fit while riding
• Horizontal flexion grooves for an adaptive fit in different riding positions
• Soft comfortable airmesh on the body side of the protector offers maximum breathability and rider comfort
• Tested and certified to EN 1621 2:2014 Level 1

Sizes & part numbers