ANSI Class 3 Vests
Class three vests are reserved for people working in the most dangerous environments where visibility is the highest priority. This includes roadways where traffic is traveling in excess of 50mph, but it can also apply to emergency personnel or tow truck operators working in blizzard or hurricane conditions where visibility is at a minimum.
A Class 3 ANSI safety vest is the largest of the ANSI vests because it requires the most background fabric and reflective striping. Because a class 3 vest requires a whopping 1,240 inches of safety yellow or safety orange background and 310 square inches of reflective striping, it often resembles a short sleeve t-shirt more than a traditional vest.