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About Alpinestars Nucleon Kr-Celli Back Protection Insert

Alpinestars Nucleon Kr-Celli Back Protection Insert

The extremely lightweight, CE-certified KR-CELLi Protector insert features an articulated back shell plate for flexibility and riding fit, plus an advanced micro-structure cell design for efficient impact energy absorption and high levels of airflow.

Warning:  California Proposition 65

Details and sizing

Product sizing chart
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