The perfect workout companion for women. The Unbroken Speed Vest is made with heavy-duty fabrics optimized for running and workouts, it comes with plates to fill it up with sand up to 18, or make it heavier adding steel shots , designed by coaches for athletes. The one size fits all.SPEED VESTWith 900D nylon and reinforced stitches, the Speed Vest focuses on permitting comfortability and ventilation during exercises. The Vest also delivers stability and precision without adding volume. This Vest is designed explicitly for exercises.A convenient laser-cut molle front pouch provides space for your phone, car keys, and additional belongings when running.Adjustable shoulders side straps. Adjustable weight options.FEATURES:Comfort: The Sand Plate shapes your body and offers a softer landing for push-ups (landing on sand rather than iron.)Fill it with sand; you can find sand in warehouses for almost nothing, as well at your local beach! SAND PLATESBuilt with Velcro ultra-resistant and reinforced 900D nylon material, assuring these plates can support the weight while you exercise!The Vest with sand is gentler on your body when you run, do burpees, do push-ups, or work out on your abs.You could also adjust the weight depending on the amount of sand you put into the plates.Permits travel convenience; you can empty the sand plates and fill them at your destination.The plates hold about 17 pounds with sand of total weight or make it heavier adding steel shots . You may use gravel or other materials other than sand to make it heavier.Plate measure after filling: 11 x 9 x 1.5 inches.The Vest is capable of holding many other plates brands.Adjustable: the weight depends on how much sand you choose to place on the plates.The Unbrokenshop Plate Carrier is designed for fitness only.