The simple,cheap ten-dollar T-shirt has proved a fantastic medium for changing fashions:from the T-shirt with antiwar slogans of the sixties,to the huge oversized T-shirt of the 80s,and the tight tees of the twenty-first century,which can cost thousands of dollars.The image of the T-shirt as an outerwear and fashion item is now firmly established,and long gone are the days of the T-shirt as underwear.