Alpinestars Motorcycle back protector pro nuc KR-1 celli

Nucleon KR-1 CELLi Back Protector InsertUltra-light back protector developed in three size-shoulder dimensions to cover all sizesHigh performance polymer material blend Cell Structure for optimized flexibility and excellent weight saving propertiesBack protector design changes from center to outside, offering a perfect balance of energy absorption and flexibilityHorizontal flex grooves for adjustment in different riding positionsSoft comfort padding on the body side of the protector provides more breathability and comfort for the riderCompatible with racing suitsCE Level 2 EN 1621-3:2018