Empower NiteBright Illuminating Weight Vest for Women adjusts up to 4 lbs for Running, Workout, Crossfit, Cardio, Walking INCLUDES 4lb light-up weighted safety vest and illustrated workout guide UNIQUE women's weighted workout vest made of soft, stretchy spot clean neoprene fabric REFLECTIVE SILHOUETTE with red flashing or steady light- highly reflective accents with an ultra-bright multi-mode LED light for maximum visibility to oncoming traffic REMOVABLE WEIGHTS adjust up to 4 lbs- weights are evenly distributed across the vest for a comfortable fit and enjoyable workout DURABLE for light strength training, cross training, walking or jogging - helps improve agility, power and endurance workouts