EN ISO 20741

Protection against cold - Garments for protection in cool environments

EN ISO 20471 specifies requirements for high visibility clothing which is capable of visually signalling the user’s presence. The high visibility clothing is intended to provide conspicuity of the wearer in any light condition when viewed by operators of vehicles or other mechanized equipment during daylight conditions and under illumination of headlights in the dark.

Performance requirements are included for colour and retroreflection as well as for the minimum areas and for the placement of the materials in protective clothing.


Three components of Hi-Vis clothing

1. Fluorescent material
2. Reflective striping
3. Contrast material


The total amount of reflectors and fluorescent material determines the safety class of the clothing.


Class 1
Class 2
Class 3


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