Conforms to American National Standard ANSI/ISEA 107-2004 and European EN ISO20471:2013 Class 1and 2; Made of breathable light weight mesh knitted fabric in order for the wearers to easily sweat out in the warm environment; 5cm wide reflective tape around the body and over each shoulder; Full front zip closure; Very useful multiple pockets and radio loop provide superb convenience. Mobile phone/walkie-talkie pocket to front left chest; Two bottom pockets with flaps and accessible from both the top and the side; Pen pockets and key holder; ID pocket on right hand chest.