Hast du auch mal weiter gelesen bei z.B. Apidura?
Zitat:
"The Packable Visibility Vest is EN 17353 compliant.
EN 17353:2020 Type B3 is the European standard that some audax and ultra-distance events mandate a night-time visibility garment meets to participate (such as Paris-Brest-Paris). This standard incorporates the older EN 1150 and EN 20471 standards sometimes referred to by event organisers.