Alpinestars Nucleon KR-Cell CiR Chest Protector – Black/Red

The Alpinestars Nucleon KR-Cell CiR is a high-performance chest protector, designed for both track and sport riding but equally suitable for everyday use. It features a dual-density high-performance polymer shell that absorbs impact energy while remaining lightweight and flexible.

Its unique Nucleon Cell microstructure ensures maximum breathability and airflow, while its geometry provides efficient energy dispersion in case of impact. The ergonomic design follows the shape of the rider’s torso, offering a secure and non-restrictive fit.

The soft-touch airmesh lining enhances comfort during long rides. Certified to CE EN 1621-3 Level 2, this protector is one of the best in its class for upper-body impact protection with minimal bulk.

Compatible with Alpinestars jackets that include a chest protector pocket or one-piece suits, the KR-Cell CiR is a smart upgrade for riders seeking breathable, race-level protection with minimal compromise on weight or mobility.

FEATURES

GENERAL
High-performance chest protector for sport/track use
Dual-density polymer hard shell
Color: Black with red accents

TECHNOLOGY & COMFORT
Nucleon Cell microstructure – energy dispersion & airflow
Soft airmesh interior lining – breathable & comfortable

CERTIFICATIONS & SAFETY
CE Certified: EN 1621-3 Level 2 (chest protection)
Compatible with Alpinestars jackets & suits