The Alpinestars Nucleon KR-1 Celli Back Protector is a CE Certified product which is comfortable and offers high performance for the rider.Developed in three waist-to-shoulder dimensionsHigh performance polymeric material blend cell structureDesign changes from the centre to the outerHorizontal flexion groovesSoft comfortable padding on the body side of the protectorThe Alpinestars Nucleon KR-1 Celli Back Protector has been constructed from a high performance polymeric material blend which is optimised for flexibility and has excellent weight saving properties. The protector is highly perforated for maximum breathability and ventilation. For rider comfort, there is soft, comfortable padding on the body side of the protector which also offers breathability.This protector is CE-certified to Level 2 due to the high level of protection available. The design changes from the centre to the outer providing the perfect balance between energy absorption and flexibility.Additional features inclu