ALPINESTARS Nucleon KR-Cell Back Protector - XL 6504018-13-XL Competition Lever Bio-mechanical lateral flexi-blade system provides

Bio-mechanical lateral flexi-blade system provides excellent front and rear movement while offering support and protection to the ankle

The inter core tube is made of stainless that slips over the entrance and into the exit cap that is made of Titanium and accented with a carbon fiber beauty cover with a 60* slash cut

Black boot upper is made from Polyurethane (PU)-coated leather with a high suede leather medial panel for superior grip Brown boot upper is full-grain oiled leather

Pleated design provides increased air-flow and high filtration

FCS® cheek pads design delivers comfort and support and features 5 mm peel-away custom-fit layer

ALPINESTARS Nucleon KR-Cell Back Protector - XL 6504018-13-XL Competition Lever Bio-mechanical lateral flexi-blade system providesDeveloped in three waist to shoulder dimensions in order to cover all body size types Back hard shell plates are constructed from a high performance polymeric material blend for optimized flexibility and excellent weight saving properties Shells are highly perforated for maximum breathability and air ventilation Single injected compound shell constructed with triple layer design to absorb impacts and allow maximum airflow Ergonomic protector plate