Beeswift Fire Retardant High Visibility Anti-Static Long Sleeve Polo Shirt made with Protex-M inherently fire retardant ASfabric. EN ISO 20471 2013 Class 3 High Visibility. EN ISO 11612: 2008 A1. B1. C1 - Protection against heat and flame. EN 1149-5: 2008 (EN 1149-3: 2004) - anti-static - Material performance and design requirements. Features ribbed cuffs and 3 button placket. Protex-M inherently fire retardant ASfabric. For industrial workers exposed to heat. Not suitable for fire fighters.