ALPINESTARS (ROAD) Nucleon Flex PROi Full Back Protector Insert — Size S, Black

🛡️ Lightweight, ventilated full back protector insert engineered to deliver high-impact protection without sacrificing comfort.

Key features:

• Hybrid cell and flex technologies providing ventilation and flexibility.
• Ergonomically contoured dual‑zone outer shell for anatomic fit and motion.
• Advanced polymeric blend with a solid cell-structure core framed by a more flexible 3D cell structure for optimized energy absorption.
• A flex technology layer on the central back zone to preserve mobility.
• Extended coverage in critical areas while remaining ultra-comfortable.
• Rigorously tested for reliable performance in extreme temperatures.
• Back protector certified to EN 1621-2:2014 Level 2.

Breathable construction and low profile design make this insert ideal for compatible garments and long rides. 🌬️