Engineered for road riders, the Nucleon PLASMA Back Protector With Straps is Alpinestars’ lightweight motorcycle back protector. Extremely lightweight, it features Alpinestars’ Nucleon PLASMA technology: a viscoelastic, impact-absorbing material designed to deliver high levels of adaptability, breathability, and ventilation. Backed with a soft-touch textile coating, this ultra-adaptive back protector delivers the optimum balance of force dispersion, flexibility, and comfort.

Featuring an embedded Nucleon PLASMA long back protector with a composite semi-rigid thermoplastic central spinal zone on the outer back  for additional protection, the protector’s ultra-adaptive geometry compresses and extends to fit, improving coverage, airflow, and all-day comfort. Adjustable, removable straps provide stability and a precise fit when worn under Alpinestars motorcycle jackets and suits.