Alpinestars Nucleon Flex Proi Back Protector Insert - Transparent Smoke/Red Jackets Palm reinforcement patch for superior

Palm reinforcement patch for superior grip

micro-adjustable

The shell integrated four-point hinge system follows the natural movement of the knee and keeps the protector well positioned in all riding positions

With a fully equipped helmet  testing  facility

feel and a high level of structural rigidity

Alpinestars Nucleon Flex Proi Back Protector Insert - Transparent Smoke/Red Jackets Palm reinforcement patch for superiorAlpinestars Nucleon Flex Proi Back Protector Insert Transparent Smoke Red The extremely lightweight Level 2 CE and UKCA certified Nucleon Flex Proi Full Back Protector Insert features a highly ventilated hybrid of Nucleon Cell and Nucleon Flex protectors for the optimum balance of force dispersion and flexibility, with a soft touch 3D mesh liner for enhanced rider comfort. The back protector insert is a full length back protector, about 22% longer