Marks & Spencer is launching a revolutionary new line of men's suits this week. After three years of research, the troubled UK retailer has developed a brand new fabric that allows the suits to be washed in standard domestic machines - so eliminating the need for specialist dry cleaning. M&S fabric technologists have developed the fabric for the machine washable suits from a mix of cottons, wools and synthetic fabrics. They claim to have perfected a single-breasted garment which has the feel and appeal of made-to-measure but can be washed quickly and easily at home, and only needs a light iron before it is ready for work or a night out.