The Safety Works high visibility safety vest meets ANSI/ISEA Type R, class 2 standards. The type II class R certifications means this safety vest has been approved for the use of roadways. It is designed from a lightweight mesh fabric to keep you cool and comfortable on hot days. The one size fits all vest features adjustable hook and loop flaps for a secure fit. The five break away points allow you to quickly remove the vest in case it gets caught, providing extra protection. This safety vest helps increase visibility for road work applications such as construction workers, airline workers, municipality worker and more.