Alpinestars Nucleon KR-3 Motorcycle Back Protector - Black/Red

* Developed in three waist-to-shoulder dimensions in order to cover all body sizes
* Lattice structure back shell plate is constructed from a high-performance polymeric material blend for optimized flexibility and excellent weight-saving properties combined with soft viscoelastic PU (polyurethane) foam compound construction
* Single injected lattice structure shell with an ergonomic design to absorb impacts and allow maximum breathability and airflow
* Nucleon PU foam on the central spine area for additional impact absorption performance
* Additional convex design on the central hard shell provides the highest level of protection for the spinal area
* Horizontal flex grooves for an adaptive fit in all riding positions
* Adjustable rib protector made with high-performance polymeric material blend for additional side protection
* Shoulder blade protective padding extensions to guard the acromion bones
* Waist adjustment for a customized fit
* Slim, vented kidney belt for added position stability and a custom fit
* Adjustable, detachable elastic shoulder straps via snap-fit system for a comfortable fit
* Compatible with the Nucleon KR-C and Nucleon KR-TB protectors