EN ISO 20471 (replaces EN 471)
High visibility clothing
Be aware of the rules for marking high visibility clothing. If a fluorescent fabric area is covered, the garment may be downgraded
Standard workwear EN ISO 20471
Protection to signal the wearer day and night
Protection of people walking on the road during a construction site or a temporary danger, by making them visible by day and night, in the light of the headlights.
Composition of clothing EN 20471
- Fluorescent fabrics for daytime visibility.
- Retro-reflective strips for night visibility in headlights.
Classification of clothing EN 20471
There are 3 classes; the higher the class of the garment, the greater the retro-reflective and fluorescent surfaces and the better the visibility.
The class of the garment is therefore determined using 2 criteria:
- Fluorescent fabric surface (Yellow, Orange or Red)
- The surface of retroreflective strips or materials
| CLASS OF THE GARMENT | FLUORESCENT (m²) | REFLECTING (m²) |
| 1 | 0,14 | 0,10 |
| 2 | 0,50 | 0,13 |
| 3 | 0,80 | 0,20 |
| Risk level | Factors related to the level of risk | Product features | ||
| Vehicle speed | Type of road user | |||
| High risk ISO 20471 class 3 | > 60 Km/h | Liabilities | High Visibility | – 360° day and night visibility (visibility from all sides) – Design to identify the shape surrounding the torso – Quantity & quality adapted to the day and night |
| High risk ISO 20471 class 2 | <= 60 Km/h | |||
| High risk ISO 20471 class 1 | <= 30 Km/h | – 360° day and night visibility (visibility from all sides) – Design to identify the shape – Quantity & quality adapted to the day and night |
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