The main function of reflective vest is to let drivers see people on the road through the reflective effect of clothes. Reflective vest is especially suitable for the staff on the road, the traffic department and the traffic police who direct the road. Of course, the most indispensable thing is sanitation workers, especially in winter, sanitation workers clean the road very early and the night is still very dark. At this time, reflective vest can play a very good protective role. I hope people who wear reflective vest can be safe