do you have a metal harness like the BooBoo Fett, Kcr7pr or Mojo ones? Or the Toolguy 3d printed one? Those types are the only;y ones you can do that with. the belt just attaches to the square metal "rings" at the bottom, pretty straight forward. If you have another type of harness, like one made of webbing or something similar, you probably cant do it. When i had a nylon webbing harness, i made a belt loop of plastic and attached it to the back of the jetpack towards the bottom and just ran the belt through that.