EN ISO 20471 is the European standard that defines the requirements for high visibility clothing, ensuring that the garments offer adequate protection in all lighting conditions. This certification establishes specific parameters for the minimum area of fluorescent and retroreflective material, design, positioning of reflective bands, resistance to abrasion, bending, light and weather, as well as criteria for washing and durability. Classified into three classes (1, 2 and 3), it determines the level of protection according to the amount of material. At RAG Tailors, all our high visibility clothing is rigorously tested and certified to this standard, ensuring legal compliance and, most importantly, maximum protection for professionals in low visibility conditions.