The Alpinestars Nucleon Flex Proi Back Protector Insert is an extremely lightweight Level 2 CE and UKCA Nucleon Flex Pro Back Protector.Developed in three waist-to-shoulder dimensionsHigh performance polymeric materialSoft comfortable 3d mesh on the body sideSnap button compatibilityRigorously tested and certified to T+ & TBack Protector: EN 1621-2:2014 Level 2 (T+ & T-)The Alpinestars Nucleon Flex Proi Back Protector Insert is super light and has been developed in three different waist to shoulder dimensions in order for it to cover all body sizes. It is made from a high performance polymeric material with Cell and Nucleon structures for an optimised flexibility and an excellent weight saving property. The design on this back protector changes from the centre towards the outside providing the perfect balance between energy absorption and flexibility. It has a soft yet comfortable 3D mesh on the body side of the protector to offer breathability and rider comfort. This protector comes w