The Alpinestars Nucleon Flex PROi Full Back Protector Insert represents the pinnacle of rider safety, combining innovative hybrid technology with an ergonomic design. Engineered for the modern rider, this insert utilizes a sophisticated blend of Nucleon Cell and Flex technologies to deliver an optimal balance between high-performance ventilation and adaptive flexibility.
Constructed from an advanced polymeric blend, the protector features a dual-zone outer shell designed to follow the natural contours of the back. Its unique architecture consists of a solid cell structure core framed by a more flexible 3D cell structure, ensuring both structural integrity and a comfortable fit. The central back zone is reinforced with a dedicated Nucleon Flex technology layer, providing enhanced protection coverage in critical areas without sacrificing mobility.
This lightweight and ultra-comfortable protector is designed to perform under pressure. It has been rigorously tested and certified to ensure proven performance even in extreme temperatures, making it a reliable choice for various riding environments.
Key Features:
- Hybrid technology combining Nucleon Cell and Flex systems for superior ventilation and flexibility.
- Ergonomically contoured dual-zone outer shell for an anatomical fit.
- Advanced polymeric blend construction with a solid core and flexible 3D frame.
- Nucleon Flex technology layer localized on the central back for targeted protection.
- Increased coverage in critical impact areas.
- Lightweight, breathable, and engineered for long-distance comfort.
- Rigorously tested and certified for performance in extreme temperatures.
| Specification |
Details |
| Technology |
Alpinestars Nucleon Cell and Flex Hybrid |
| Material |
Advanced Polymeric Blend |
| Certification |
Tested for Extreme Temperatures |