For reflective vests, its main role is to reflect very strong light, and the reflection is enough to stimulate the driver's eyes, transmit signals, remind the former pedestrian, and avoid accidents. The main material of reflective vest is mainly made of mesh cloth or some flat cloth, and its reflective material is generally made of reflective lattice, but also made of high-brightness reflective cloth. An important part of the reflective vest is reflective, using the principle of lattice reflection, mainly made of a series of mature processing processes. Distant direct light can be immediately reflected back to the luminous place, whether it is day or night,safety vest can have a good reflection optical effect. Safety Reflective vests are usually used by traffic police, sanitation workers, traffic commanders, and some highway maintenance personnel. Mainly for staff who need to use light as a warning in low light. We see the Safety Rain Gear,Reflective Belt, life jacket, life buoy, etc., safety clothing will have a reflective effect to play a safety warning role.