Ultimate visibility due to 4 white LED lights on the front and 4 red LED lights on the back and reflection strips on the belts for added safety. The one size fits all system is easily adjustable at the shoulders and around the waist. This LED reflective vest makes you more visible in the dark while walking, running, cycling or any other sports activity in the dark. It has a visibility of 200 meters. Features: Multifunctional reflective vest, with maximum visibility High wearing comfort due to elastic adjustable straps 4 white LEDs at front, four red LEDs at back 2 light options, continuous on or flashing Battery (CR 2032) is replaceable Specifications: Color: neon yellow Material: polyester Gender: unisex Battery: yes