The Alpinestars Nucleon KR-CELL CE Level 1 Motorcycle Back Protector is the latest generation of rider protection to emerge from the technical vaults at Alpinestars, designed to push the boundaries and improve rider safety and comfort.CE Level 1 certified (EN1621_2:2014)Back hard shell plateShells are highly perforatedSingle compound shell with triple layer designErgonomic protection plateHorizontal flexion grovesAdjustable and detachable elastic shoulder straps allow use in garments with 'Snap-Fit' systemCompatible with Nucleon KR-C protectorCompatible with Nucleon KR-TB protectorKidney belt features dual Velcro closure systemSoft bio foam padded chassisThe Alpinestars Nucleon KR-CELL CE Level 1 Motorcycle Back Protector has a back hard shell plate construction which provides a high level of performance due to the polymeric blend of materials used which optimises the flexibility and weight saving properties. The single compound shell has a triple layer design which means that it is ab