This fall's unbuttoned button-down warrants a closer look, because not only is the peekaboo effect alluring, it's effortlessly chic, too. (The blouse immediately below is by ) The key to pulling it off is a blouse with an extra long, thigh-grazing length. The additional coverage nicely counterbalances the skin-baring styling. Some great starter shirts come from , , , and .

Photos: Vogue, @J2Martinez