NecksGen REV2 LITE Head & Neck RestraintRUR NECKSGEN REV2 LITE S NecksGen is the leader in head and neck restraint safety. The REV2 Lite is NecksGen's ultimate head and neck restraint safety device. The brand new REV2 Lite for 3" shoulder harnesses has advanced features that elevate it to new found levels of comfort. It has no frontal yoke, so there's no pressure on the body or collar bone. The thin design gives full range of head motion with no front or rear interference with your helmet.