The chambray shirt reemerged a few years ago during the workwear craze, reminding everyone that the pale blue cotton shirt is as timelessly American as Paul Newman in Cool Hand Luke. This version by Ralph Lauren is the perfect example. Rendered in true indigo-dyed chambray, it's finished with authentic mother-of-pearl buttons and double stitched for ultimate durability. But these days, chambray isn't just for work shirts. A handful of brands are interpreting this old school material into styles favored by today's men (think band collars, popovers and polka dots). Which makes sense. It's hard not to appreciate such an egalitarian shirt that can be worn to work with a tie, under a jacket on a date or over a T-shirt on the weekend.