[Brighter and Safer]Our upgraded reflective running vest combines LED lights (front and back) and reflective gear to provide 360 visibility. Unlike ordinary reflective vests, high-brightness LED reflective vests can provide more nighttime visibility in lower light areas, with over 800 feet of ultra-long distance LED light reflection, making you safer. This reflective running gear is a must-have for anyone who likes to workout at night or on foggy mornings [USB Charging]No need for extra button batteries, the runner running light comes with a 2-in-1 USB cable to charge the front and rear lights. It takes just 2 hours to fully charge but provides over 7 hours of extra long battery life. There are 4 LED lights on the front and rear of the running vest, equipped with 3 light modes: fast flash, slow flash, and steady light. Featuring separate front and rear switches, you can adjust the safety vest's lights as needed [Lightweight and Comfortable]The reflective vest is lightweight and you won't feel it when you put it on. Small size, very convenient to carry. Made of sweat-proof, friction-free, premium stretch fabric, the rechargeable LED light is extremely comfortable even while exercising. The running light can be easily installed and removed thanks to two quick-release clips on the front Adjustable reflective vest, running light with stretchable elastic straps, the runner chest light will fit perfectly whether it's for men, women or kids. You can adjust the size by simply sliding the button with one hand: adjust waist 27inch-50inch; adjust shoulders 12inch-21inch. Running vests greatly improve your visibility in the dark and are suitable for walking, running, biking and more. The reflective running vest also comes with 2 reflective arm straps that can be worn on the arms, ankles or even your dog for added safety Colour:green Material:Elastic webbing Package Contents: 1 x LED Reflective Vest 2 x Armbands Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.