As an Office Supplies World helpful Guide to Clothing, when considering the use of clothing to protect the wearer during a specific task or situation the following standards are in place where appropriate, which should ensure protection to a specified level. CE levels of simple, intermediate and complex design for limited life clothing are as follows - EN465 is protective clothing, FN343 is waterproof clothing, EN531 is clothing for industrial workers exposed to heat, excluding ­fire fighters and welders, EN470 is for clothing for welding and allied processes, EN471 is high visibility clothing for use on roads, highways and rail, and EN342 is clothing for cold conditions Generally Leg sizing available for trousers is Regular leg – 31’’ and Tall leg - 33"