The Alpinestars Nucleon Plasma Back Protector - Extended Coverage delivers CE Level 2 protection and airflow to both men's and women's Alpinestars jackets. 

The Alpinestars Nucleon Plasma Back Protector is designed to fit Alpinestars jackets with a correspondingly sized back insert pocket. The extremely lightweight Level 2 CE and UKCA certified Nucleon Plasma Back Protector Insert features Alpinestars’ Nucleon Plasma Technology. Unique to Alpinestars, Plasma is an eco-friendly, sustainable and lightweight impact-absorbing material. Backed with a soft-touch textile coating, this ultra-adaptive protector delivers the optimum balance of force dispersion, flexibility and comfort.

Features:

• CE Certified Level 2 (EN1621-2:2014)
• Lightweight, flexible blend of bio-based materials and high performance polyurethane 
• Contoured for anatomical and adaptive fit
• Perforated for breath-ability and comfort
• Channel ventilation system for optimized airflow

Men's Jacket sizing:
44-50 or XS-MD: Medium Nucleon
52-64 or LG-4XL: Large Nucleon