High visibility clothing is essential to prevent potential accidents and be visible to other people. But, how do we class high visibility clothing? It is divided into three classes, according to the minimum surface area of the background material and retro-reflective material that the item of clothing consists of. The higher the class (and therefore the retro-reflective surface), the higher the level of protection it provides us with.
The contrast between the clothing and the background means that the person wearing the high visibility work clothing is more visible and this is achieved through fluorescent materials (if it is a daytime situation) or reflective materials (in the case of poor light).
All high visibility clothing is designed to be the first element of protection or defence in the event of an accident due to a vehicle-pedestrian collision or moving machinery. Therefore, clothing must comply with specific standards which are contained in ISO 20471/13+A1/16 in accordance with Spanish law 31/1995.