The simple,cheap ten-dollar T-shirt has proved a fantastic medium for changing fashions:from the T-shirts with antiwar slogans of the sixties,to the huge oversized T-shirts of the 80,and the tight tees of the 90,right up to the designer brands 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 family established,and long gone are the day of the T-shirt as underwear