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Highly flexible and breathable, the Alpinestars Nucleon KR-3 Back Protector is engineered for maximum performance. Using hard shell backed with a soft viscoelastic PU foam compound, the KR3 achieves both max comfort and extraordinary impact absorption.
3 waist-to-shoulder dimensions in order to cover all body sizes
Lattice-structured back shell plate constructed from a high performance polymeric material blend for optimized flexibility and excellent weight-saving properties
Soft viscoelastic PU foam compound
Ergonomic design design to absorb high impacts and allow maximum breathability and air flow
Nucleon PU foam on the central spine for extraordinary impact absorption performance
Convex central hard shell provides highest protection for the spine
Horizontal flex grooves for adaptive fit in all riding positions
Adjustable rib protector constructed of high performance polymeric material blend for additional side protection
Shoulder blade protective padding extensions protect the acromion bone
Waist adjustment for customized fit
Slim vented kidney belt for added position stability and security
Adjustable, detachable elastic shoulder straps
Compatible with the Alpinestars Nucleon KR-C Chest Protectors (sold separately)
Compatible with the Alpinestars Nucleon KR-TB Protector (sold separately)
CE certified to EN 1621-2:2014 Level 2
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