Alpinestars Nucleon KR-2i Back Protector Insert

The Alpinestars Nucleon KR-2i Back Protector Insert fits Alpinestars jackets with insert pockets and delivers CE Level 2 impact protection.

Features:

• CE Certified Level 2 (EN1621-2:2014)
• Lightweight, flexible PU injected impact foam
• Contoured for anatomical and adaptive fit
• Perforated for breath-ability and comfort
• Channel ventilation system for optimized airflow

Fitment:

• Women's Stella Jackets:
  • 36-38 or XS-SM: Small Nucleon
  • 40-50 or MD-3XL: Medium Nucleon
• Men's Jacket:
  • 44-50 or XS-MD: Medium Nucleon
  • 52-64 or LG-4XL: Large Nucleon

Sizing:

• SM - 15" L x 8.75" W
• MD - 16.75" L x 9.75 W
• LG - 17.75" L x 10.75" W