I wanted to expand on this a bit as it leads to a point worth making. @Shyheels is correct in noting women's clothing offers far more choices in terms of colors, cuts/styles, fit, versus men's clothing. As a result, women do have far more ability to express themselves in what they wear whether it is in a professional, business casual, or a relaxed setting. This, in turn, leads to greater acceptance of what women "can" wear in professional/business casual settings when compared to men. I make my case via a pair of camouflage pants.
I have struck up a casual friendship with a woman who works in another unit in another part of my office building. She often dresses in what I would describe as "relaxed professional" attire - well fitting jeans, a solid color sweater, "appropriate" make-up and accessories, and modest trainers (for footwear - no flashy colors, etc.). One day not too long ago, she was wearing a black sweater, matched with camouflage dress pants, and black loafers. The pants were clearly dress pants due to their cut, style, and fit - they were certainly not fatigues nor aerobic style tights/leggings. I commented to her that I not only loved her pants but that she wore them into the office in a very stylish manner. She mentioned from where she purchased them (which was a higher end department store) and a short time later, I purchased a very similar pair but from a different store. When the weather warms a bit, I intend to wear them to the office with a some sort of maroon or black top and loafers or kitten/low heels. I expect that no one will notice/care and if I do so and head out somewhere after the end of the day, to receive a compliment or two.
I would tend to believe that as women have far more latitude to express themselves via the clothes they wear, wearing a pair of camouflage dress pants to an office will not receive much attention. If a man, however, should do the same, that would clearly be noticed and depending on a variety of factors, may very well be frowned upon even if a relaxed dress code where in place. I will not be shy in suggesting that when it comes to attire in professional environments, women have a much greater ability to express themselves via the clothes they choose to wear. I am indicating that, yes, there is a double standard in place where, in certain situations/environments, male conformity in attire is expected or even demanded. Not that I am at all trying to disparage, belittle, or insinuate any negative comments towards anyone, but at my building, the only men I occasionally see in camouflage attire are the heavy maintenance workers (e.g. HVAC, plummers, etc.). Although my superiors have established a reasonable dress code for all employees, I would tend to believe that a man wearing camouflage fatigues to the office would not be welcomed. This is the result, in part, of certain clothing holding certain stereotypes for men and women. Camouflage pants/shirts, etc., for a man are "automatically" fatigues but more 'houte couture' for women. Just to prove my point, I recently purchased a well fitting, knee-length camouflage skirt I wore to the office yesterday with rather plain, 3" heel, knee high black leather boots. From my point of view, I felt the outfit looked quite fashionable but I did not receive any comments on the outfit as there were very few other individuals in a work station (still digging out of a snowstorm and arctic cold).
I would also make the same argument for animal print clothing and cargo pants as well.