Check the listing for details. Alpinestars BNS Tech Carbon Neck Support XS/M - Anthracite/Red/White. Color: Anthracite/Red/White, Condition: New. Listed at 249.99 USD. Engineered to help prevent neck injury and minimize the risk of collateral damage, the Bionic Neck Support (BNS) Tech Carbon is constructed from an advanced carbon polymer for optimized frame strength and lightweight performance. The BNS Tech Carbon functions when the rider’s helmet makes contact with the frame at the moment of a crash, thus providing a clean, solid surface which instantly channels damaging, compressive impact energy away from the neck and on to the BNS. Featuring a host of award-winning design innovations, such as a quick release locking system and a rear stabilizer offering critical protection to the spine, the BNS Tech affords a highly customizable, secure and comfortable fit for all forms of off-road riding.