ALPINESTARS Nucleon Flex PROi Full Back Protector Insert Transparent - Smoke/Red

Features 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 Specs Base Color Black Size Group Adult Product Name Guard Material