The present invention is a collar/harness worn to protect the cervical spine of an active participant when force is applied that would otherwise cause hyperextension, abnormal movement or position, or compression that results in injury, the device (collar-harness) is worn on the shoulders with an anterior (chest interface) portion and a posterior (back interface) portion such that a removable, adjustable coil interfaces with a helmet and the collar via attachment platforms arrayed at the angle of the mandible on either side and at the base of the head to prevent compression and hyperextensions of the cervical spine.