This unit has passed the mandated SFI 38.1 testing procedures. The Necksgen Head and Neck Restraint unit is designed and made in the USA, using the latest carbon fiber composite dupont material. Not only are these materials lightweight, but they are extremely strong. The Quick Release Helmet Hardware is a unique two finger quick eject helmet attachment system with an emergency pull optional pull tag for quick disconnect. The wings on a standard large adult unit can accept 2" or 3" seat belts, the youth unit accepts 2" belts only. The wings aid in keeping your harness in place under impact. Even in multiple impact situations where the belts could loosen. The flexible bar allows for upper body movement and comfort while driving and it also allows the user to flex the unit over larger necks. The belt guides keep the unit centered on the driver at all times, not allowing the unit to slip from under the belts. The body forming Kevlar belts with Nomex pads fit under the seat belt, taking any pressure off the collar bone and making the unit very comfortable. The unit has an adjustable rear to fit most seat angles from 10°-40°. This allows the driver to adjust the back of the unit for comfort or interference with the helmet or the seat. The low profile design allows easy access from confined areas with little interference on roll bars in dragsters and landspeed cars. Using a single tension neutralizing tether keeps the loads under impact distributed through four different load paths. This unique system offers an equal distribution of forces under impact. This system also offers a full range of head motion and side and angular impact protection.