Alpinestars Nucleon KR-1i Back Protector Insert

Alpinestars Nucleon KR-1i Hybrid Back Protector Insert

The Alpinestars Nucleon KR-1i Hybrid 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.

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