The Alpinestars Nucleon KR-1i Back Protector Insert is CE certified Level 2 to the latest back protector standard revision which incorporates energy absorbing foam and a perforated hard shell core for excellent safety and comfort.
Lightweight, perforated hard shell fused together with energy absorbing foam offers excellent impact resistance while being flexible and anatomically contoured.
Innovative cooling airflow channel system offers optimized levels of protection and comfort for sport and street riding.
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