This XM Tactical Vest is made to withstand serious abuse and designed to fit firmly but comfortably on your body so that there is minimal movement while doing exercises like running, burpees, chin-ups, dips and more. This vest is great for adding weight to any workout or cardio in your routine. The best part is this vest comes with the XM FITNESS Contoured Plates. XM also contoured the plates so that you get a much more comfortable fit.