Alpinestars Nucleon Plasma Full Back Protector Insert

For all-day road riding, the Nucleon Plasma Full Back Protector Insert delivers impact protection with extended lower-back and coccyx coverage inside compatible back protector pockets in Alpinestars jackets and suits, using flexible, ventilated Nucleon PLASMA technology to support freedom of movement and lasting comfort.

Advanced Impact Protection: Nucleon PLASMA is engineered with a viscoelastic material that absorbs and dissipates impact forces while remaining flexible.
Enhanced Fit: Alpinestars’ PLASMA and high-performance polyurethane combine to deliver superb adaptability for an enhanced performance fit.
Premium Ventilation and Comfort: Highly ventilated for superior airflow and breathability featuring an extensive number of lateral and longitudinal ventilation channels for effective heat dissipation. with a soft-touch liner on the inner side for optimum rider comfort.
Optimized Freedom of Movement: Engineered for a balance of protection and mobility, allowing unrestricted motion during rides.
Advanced Technology: 60 years of innovation and extensive testing and research have resulted in the development of Alpinestars' PLASMA Technology; the perfect balance between impact force absorption, density, thickness, and pliability.
Innovative Design : The adoption of Nucleon PLASMA Technology allows Alpinestars to tailor the geometry throughout the protector, resulting in extensive perforations while still exceeding the impact performance requirements of the CE Standards.
Ultra-Adaptive Fit: The Nucleon PLASMA Full Back Protector Insert’s innovative design allows the protector to compress and extend on itself which delivers an ultra-adaptive fit for superior rider comfort.

Nucleon PLASMA Full Back Protector Insert (Lower Back and Coccyx Coverage; Category II EN 1621-2:2014; UKCA Certified) - CE Level 2

Bio-based viscoelastic compound
The Nucleon PLASMA Back Protector is constructed from a bio-based viscoelastic impact-absorbing compound containing at least 25% bio-based content, molded into a precision-engineered geometry. The PLASMA material dissipates impact energy and significantly reduces transmitted forces through controlled material response.

Low-profile PLASMA geometry
The low-profile PLASMA geometry is developed to compress and extend with movement while supporting airflow through its channeled and highly perforated design.

Waist-to-shoulder lengths
The lightweight back protector insert is available in three waist-to-shoulder lengths to fit a wide range of body sizes.