Reference

Hi-vis Class 2 and Class 3 are performance classes set by ANSI/ISEA 107-2020, defined by minimum areas of fluorescent background and retroreflective material, and the gap is decided by traffic speed and exposure. This guide covers the class areas, garment Types O/R/P, Class E items, and a worked example of picking a class by jobsite.

A high visibility vest only protects you if its ANSI/ISEA 107 Type and Performance Class match the hazard. This guide decodes Type O, R, and P and Classes 1, 2, and 3, shows when each is required on roadways and at night, and walks through selecting a vest for a real work zone so you buy the right garment the first time.