The Alpinestars Bionic Flex Knee Protector features ergonomically profiled Nucleon Flex Technology protection held securely in position with an elasticated top strap and silicon hems
Alpinestars Bionic Flex Knee Protector
![](https://motorbikegears.com/wp-content/uploads/2022/09/Alpinestars-Bionic-Flex-Knee-Protector.png)
The Alpinestars Bionic Flex Knee Protector features ergonomically profiled Nucleon Flex Technology protection held securely in position with an elasticated top strap and silicon hems