NecksGen Rev Head and Neck Restraint
NecksGen's REV is an awesome piece of engineering. It is strong, built for comfort, incredibly lightweight (less than 2 pounds), and made in America.
The NecksGen REV comes in 4 sizes: Small (2 inch belts), Medium (2 inch belts, Medium (2 or 3 inch belts), and Large (2 or 3 inch belts)
Add an extra set of hardware if you have a second helmet.