Alpinestars Nucleon Flex Proi Back Protector Insert - Transparent Smoke/Red Jackets feel and a high level

feel and a high level of structural rigidity

auto-locking YKK zips for main frontal closure and on detachable sleeves to ensure secure fitting

while the helmet is still on the rider’s head

micro-adjustable

The propriety designs incorporate strategically positioned aramid stretch paneling to visually lengthen and enhance the female form while offering an optimized fit and supreme maneuverability

Alpinestars Nucleon Flex Proi Back Protector Insert - Transparent Smoke/Red Jackets feel and a high levelAlpinestars 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