Alpinestars bns tech carbon neck bracealpinestars bns bionic neck support tech carbon neck brace uses an advanced carbon fibrepolymer material to provide a lightweight yet extremely strong construction in the event of a crash its designed to effectively divert impact forces away from the neck area teams up with any helmetthe bns tech carbon also works along with your helmet to create a clean and solid surface to prevent any jarring or twisting of the head this design can help to reduce