Alpinestars Rintapanssari KR-Cell CiR

The KR-Cell CiR Chest Protector is Alpinestars' highest performing impact armor for the chest. The flexible, ventilated design offers race-level performance with new levels of airflow and comfort, benefiting street and track enthusiasts alike. The KR-Cell CiR chest protector can be worn between the rider's body and any race suit or sport jacket. Or it can be tucked into suits and jackets equipped with pockets for single-piece chest protector units. The KR-Cell CiR meets or exceeds testing standards for CE Level 2 EN 1621-3:2018 certification.



The KR-Cell CiR Chest Protector is Alpinestars' highest performing impact armor for the chest. The flexible, ventilated design offers race-level performance with new levels of airflow and comfort, benefiting street and track enthusiasts alike. The KR-Cell CiR chest protector can be worn between the rider's body and any race suit or sport jacket. Or it can be tucked into suits and jackets equipped with pockets for single-piece chest protector units. The KR-Cell CiR meets or exceeds testing standards for CE Level 2 EN 1621-3:2018 certification.


• The double-layered chest shell plate is constructed from a high performance polymeric material blend for optimized flexibility and excellent weight saving properties.

• Unique CELL microstructure is designed for advanced energy absorption, adaptivity, maximum breathability and air flow.

• Soft comfortable airmesh on the body side of the protector offers maximum breathability and rider comfort.

• EN 1621-3:2018 Level 2.

• According to European statutory law the CE mark is a conformity requirement for the marketing of the product.

• The Nucleon KR-CiR is a high performance, super lightweight track and race chest protector featuring the Nucleon Cell technology.

• The chest protector's structure design and structure changes from the center towards the outside and provides the perfect balance between force dispersion and energy absorption.

• Ergonomic protection plate contours to the natural curve of the back ensuring optimum fit while riding.