Alpinestars Nucleon KR-1 Cell Back Protector – Transparent Smoke/Black/Red – Size Small – 6504520-9-S The Alpinestars Nucleon KR-1 Cell Back Protector delivers advanced back protection for sport and street riders seeking lightweight comfort, flexibility, and high-level impact protection. Designed with a ventilated cell structure and ergonomic shape, this protector provides excellent coverage while allowing freedom of movement during riding.
