nucleon flex proi full back protector insert transparent smoke red Color:Transparent Smoke Red breathable laser perforations and reinforced

breathable laser perforations and reinforced external heel

as well as to the placement of seams in strategic locations and away from any flex points

The result is confident bike control

Alpinestars advanced urban sole for walking comfort

The tailored fit prevents bunching and excessive flapping at speed

nucleon flex proi full back protector insert transparent smoke red Color:Transparent Smoke Red breathable laser perforations and reinforcedThe extremely lightweight Level 2 CE and UKCA certified Nucleon Flex Pro 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 than regular back protector inserts. The Nucleon Flex Pro is compatible with