The extremely lightweight Level 2 and UKCA certified Nucleon Plasma Full Back Protector insert features Alpinestars' Nucleon Plasma technology. Plasma is a unique product from Alpinestars and an environmentally friendly, sustainable and lightweight shock-absorbing material, while its clever design provides a premium level of adaptability, breathability and ventilation. Equipped with a soft-touch textile coating, this ultra-adaptive protector offers the optimal balance of power distribution, flexibility and comfort. Environmentally friendly and sustainable shock absorbing material; a blend of bio-based materials and high performance Polyurethane provides excellent adaptability for an improved performance fit. Highly ventilated for excellent air circulation and breathability, with a soft touch inner lining on the skin side for optimal rider comfort. The super lightweight back protector insert has been designed in three dimensions from waist to shoulder to cover everything Thanks to the use of nucleon plasma technology, Alpinestars can individually adjust the geometry of the entire protector. in large perforations and yet far exceeds the impact resistance requirements of the standards. Another outstanding feature of this design is the large number of lateral and longitudinal ventilation channels for effective heat dissipation. The innovative design of the Nucleon Plasma back protector insert allows the protector to be squeezed and expanded. This provides a highly adaptable fit for superior rider comfort. Certified according to II EN 1621-2:2014 Level 2.