Super Bright : The vest has super bright LED lights and a reflective tape that allow you to be visible from a long distance. Premium Material: This reflective belt is made of elastic band and luminescence film, which are durable and safe to wear. 3 Modes: This running vest has three modes: steady on, fast flash, slow flash. You can freely choose your preferred working mode. Universal: With four adjustable buckles and an elastic strap, your LED safety vest can be easily worn over a t-shirt, sports equipment, winter coat or any kind of clothing. Multi-use: The belt can improve your safety when running, cycling, motorcycling, jogging, playing children, steering traffic and much more.