The outfit, which comprises a pair of black, boot cut trousers and a white shirt, will be available until February 26 and is designed to help a "cash poor nation", according to the supermarket. The trousers and blouse normally cost £5 each but the grocer is offering the blouse for free with every purchase of the black trousers for the next month.
Asda said that similar outfits from rivals Marks & Spencer, Next and Tesco, sell for £22.50, £28 and £20 respectively.
George brand director Fiona Lambert said: "Office staples can be stylish but they do not have to be expensive. This versatile outfit from George is great for the office, but would work equally well for an evening out, dressed with a stunning piece of statement jewellery and high heels."