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The Alpinestars Nucleon KR-CELLi Back Protector is constructed of a polymeric material blend that features a triple segmented back shell plate to strike a great balance between energy absorption and force dispersion. The ergonomic design of the Nucleon KR-CELLi, in tandem with the horizontal flexion grooves, allows it to contour to the natural curve of the back to provide a fit that molds to a variety of riding positions.

Features:

  • Triple segmented back shell plate constructed of a polymeric material blend
  • Unique cell micro-structure designed to optimize energy absorption and air flow
  • Ergonomic protection plate contours to the natural curve of the back
  • Horizontal flexion groves for an adaptive fit in different riding position
  • Airmesh on the body side of the protector offers maximum breathability
  • CE Level 1 protection

Men's Jacket sizing:
44-50 or XS-MD: Medium Nucleon
52-64 or LG-4XL: Large Nucleon 

Women's Stella Jackets sizing:
36-38 or XS-SM: Small Nucleon
40-50 or MD-3XL: Medium Nucleon 

Actual Dimensions:
SM - 15" L x 8.75" W
MD - 16.75" L x 9.75 W
LG - 17.75" L x 10.75" W

*For CE Level 2 protection check out the Alpinestars KR-2i back protector insert

Alpinestars Nucleon KR-CELLi Back Protector

Regular price
$44.95
Sale price
$44.95
Quantity must be 1 or more

The Alpinestars Nucleon KR-CELLi Back Protector delivers CE Level 1 impact protection in a lightweight, well ventilated design optimized to work both men's and women's Alpinestars jackets.  Read More Read More

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About The Brand

Since its inception as a motocross boot manufacturer in the Dolomite Mountains of Italy, circa 1964, Alpinestars has earned a reputation as a top supplier of performance gear to some of the best motorsports athletes in the world.

More products by Alpinestars

The Alpinestars Nucleon KR-CELLi Back Protector is constructed of a polymeric material blend that features a triple segmented back shell plate to strike a great balance between energy absorption and force dispersion. The ergonomic design of the Nucleon KR-CELLi, in tandem with the horizontal flexion grooves, allows it to contour to the natural curve of the back to provide a fit that molds to a variety of riding positions.

Features:

  • Triple segmented back shell plate constructed of a polymeric material blend
  • Unique cell micro-structure designed to optimize energy absorption and air flow
  • Ergonomic protection plate contours to the natural curve of the back
  • Horizontal flexion groves for an adaptive fit in different riding position
  • Airmesh on the body side of the protector offers maximum breathability
  • CE Level 1 protection

Men's Jacket sizing:
44-50 or XS-MD: Medium Nucleon
52-64 or LG-4XL: Large Nucleon 

Women's Stella Jackets sizing:
36-38 or XS-SM: Small Nucleon
40-50 or MD-3XL: Medium Nucleon 

Actual Dimensions:
SM - 15" L x 8.75" W
MD - 16.75" L x 9.75 W
LG - 17.75" L x 10.75" W

*For CE Level 2 protection check out the Alpinestars KR-2i back protector insert

About The Brand

Since its inception as a motocross boot manufacturer in the Dolomite Mountains of Italy, circa 1964, Alpinestars has earned a reputation as a top supplier of performance gear to some of the best motorsports athletes in the world.

More products by Alpinestars

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