Alpinestars Nucleon Plasma Full Back Insert – Medium

The Alpinestars Nucleon Plasma Full Back Insert delivers premium impact protection engineered for serious riders. Built with Alpinestars' proprietary Nucleon Plasma Technology, this back protector uses a bio-based, high-performance polyurethane compound that is lightweight, eco-friendly, and purpose-built for force dispersion.

The insert conforms dynamically to the rider's spine, compressing and extending with body movement for an adaptive, secure fit. Multiple lateral and longitudinal ventilation channels promote consistent airflow, reducing heat buildup during extended rides. A soft-touch textile interior lining minimizes skin irritation and maximizes all-day comfort.

Key Features:

• Nucleon Plasma Technology – Lightweight impact-absorbing compound with superior force dispersion
• Eco-friendly construction – Bio-based materials combined with high-performance polyurethane
• Multi-channel ventilation – Lateral and longitudinal channels for effective heat dissipation
• Soft-touch interior lining – Skin-friendly textile coating for comfort during extended wear
• Adaptive fit – Compresses and extends to conform to the rider's body

Specifications:

• Brand: Alpinestars
• MPN: 6526624-31-M
• Size: Medium
• Weight: 1.2 lbs
• Barcode (EAN): 8059347330617