Alpinestars Nucleon Flex Pro Knee Protector Black

Incorporating innovative Nucleon Flex Pro technology that is lightweight and ventilated, the Nucleon Flex family of protectors is ergonomically engineered for comfort, convenience, performance and protection.
Ergonomic design provides high levels of movement with large coverage.
Open design structure ensures high levels of airflow and ventilation.
Slim design gives a low protector profile, meaning the protection appears discreet in the garment off the bike.
Adaptive design means the protector molds to the rider’s body shape for enhanced levels of comfort.
Level 2 EN 1621-1:2012