this MX and off-road sportswear jersey is your best ally for long riding sessions

Alpinestars' top-level professional racing suit

the jacket has DFS Lite external shoulder sliders as well as Nucleon Flex Plus CE Level 1 rated armor on the shoulders

weather performance and comfort in extreme adventure riding conditions

and this is reinforced even further by the strategically-positioned knitted stretchable open mesh panels on the back

nucleon plasma back protector RGroup_8306723 this MX and off-road sportswearIntroduced in 2024 and engineered for road riders, the Nucleon Plasma Back Protector delivers lightweight, lowbulk motorcycle back protection for sport and street use. CE EN 16212: 2014 Level 2 rated, it combines a biobased Nucleon PLASMA viscoelastic core with a semirigid thermoplastic spinal zone for impact dispersion, plus PLASMA M ventilation and adjustable, removable straps for airflow, stability, and a precise fit under jackets or suits.