This reflective running vest is made of high-quality materials. It features skin-friendly, comfortable and freely adjustable, suitable for men, women, and children. Our safety vest has super bright LED lights and reflective tape, ensure that you can be seen in the dark from all angles, making it a must-have for morning and late night running, biking, hiking, motorcycles, jogging, mountain biking, and horse riding. This reflective gear uses a replaceable lithium-ion button battery(CR2032), which you can easily buy in stores. Customized logos are welcome.