The Precision Punch Is NOT a Safety Harness. The Precision Punch in no way offers the User any protection from an opponent's punches or attacks in any way. It is designed in a way that supports the natural movement of the body, thus there are no repetitive use safety issues to address. However, when a person is sparing with the Precision Punch Harness on the user will be exposed to the same potential danger of any fighter stepping into a Live-Action sparing event, It is in a live-action event that the Precision Punch will work best at training the fighter Muscle Memory, he or she will however get hit Just as they normally would. We know you will love the Precision Experience.