100% polyester with Velcro® closure. Two 5cm wide reflective bands around the body and one on each shoulder. Complies with standard: - EN ISO20471:2013 category 2: only Hi-Vis Yellow, Hi-Vis Orange and Orange/Hi Vis Yellow. - EN ISO20471:2013 category 1: only Black/Hi Vis Yellow, Lime/Hi Vis Yellow, Navy/Hi Vis Yellow, Purple/Hi Vis Yellow, Paramedic Green/Hi Vis Yellow, Red/Hi Vis Yellow, Raspberry/Hi Vis Yellow and Royal Blue/Hi-Vis Yellow. - EN 1150:1999 PASS: Lime only.