Discover... Treated with a flame-retardant finish, this Arco long-sleeve hi-vis vest is designed for wearing over other flame-retardant workwear and is not designed to provide flame protection on its own. It’s manufactured from high-visibility polyester fabric with flame-retardant reflective tape to help the wearer stay seen in hazardous environments. Learn more... • Hi-vis waistcoat offering limited flame spread protection made from 100% polyester with flame-retardant finish • Bright material with flame-retardant reflective tape to help wearer stay seen, even in low-light conditions • Hook-and-loop fastening ensures this vest is easy to don and doff Get technical... EN 14116:2015 1/5H/40 EN ISO 20471:2013+A1:2016 Class 3 Arco Yellow Long-Sleeve Flame-Retardant Hi-Vis Vest 5XL