I will be the first to admit that there are many clothing stores out there where I've been unable to figure out which is the men's section and which is the women's. But generally speaking, that's more about how aloof and easily confused I am in a retail environment than anything else.
Clothing is one of the most powerful and intimate ways we define ourselves, and traditionally, that has meant distinctly male and female fashions. But increasingly, designers and retailers are seeing the trend moving toward gender-fluid fashions, with one store actually devoting a brick-and-mortar store that does away entirely with men's and women's sections.