Alpinestars Nucleon Flex Proi Full Back Protection Insert

Description

Hybrid technology Alpinestars' Nucleon Cell and Flex technologies providing ventilation and flexibility
Ergonomically contoured dual zone outer shell
Advanced polymeric blend with a solid cell structure core framed by a more flexible 3D cell structure
Nucleon Flex technology layer on the central back zone
More protection coverage in critical area
Lightweight, ventilated and ultra-comfortable technology
Rigorously tested and certified for proven performance in extreme temperatures