ARC Compliant Hi-Vis Rail Spec Trousers* Fire Retardant, Hi Vis, Anti static, ARC Flash, orange cargo style trousers.* GO RT 3279 issue 8 2013 for use on or around railway lines.* 310gsm 40% Modacrylic, 24% FR Viscose, 20% Polyester, 10% Cotton, 4% Aramid, 2% Anti static Fibre.* 7 belt loop part elastic waisband, double button closure.* 2 hip pockets. * Rear patch pocket with hook and loop closure flap.* Large bellows pocket to each leg with hook and loop closure flap.* Right leg mobile