Alpinestars Nucleon KR-2i Back Protector Insert

by Alpinestars

The NUCLEON KR-2i soft back protector is quick and convenient to insert and fit unobtrusively within a rider's jacket or suit for the ultimate in comfort and safety protection.

  • NUCLEON KR-2i Back Protector Insert is CE certified Level 2 (EN1621-2:2014)
  • Lightweight, flexible PU injected impact foam
  • Contoured for anatomical and adaptive fit
  • Perforated for breathability and comfort
  • Channel ventilation system for optimized airflow


  • SMALL = 15.5 x 9.5 inches
  • MEDIUM = 16.5 x 10 inches
  • LARGE 17.5 x 10.5 inches

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