Chest protectors; article for the protection of the chest of motorized vehicle operators and riders, including articles for the protection of the chest that are adapted for use in conjunction with a protective neck brace for use in conjunction with a full face or open face protective helmet so as to prevent spinal cord injuries; motor vehicle accessories, namely a chest protector for use in conjunction with a protective neck brace for use in conjunction with a full face or open face protective helmet to prevent spinal cord injury to operators of motorized vehicles, including motorcycles, superbikes, motorcross, go-karts, ATVs, personal watercrafts, snow mobiles, mountain bikes, bicycles, BMX, cars, trucks, boats and military vehicles