I believe that gender identity run along a spectrum from very feminin to masculin and our gender identity falls somewhere along that spectrum. If you are male society says you must live in the far male end of the male side. If you are female you can pretty much slide anywhere along that spectrum you like. My gender bias put me somewhere a little less masculin so I dress to allow myselfe to slide down the spectrum a little to appoint where I am comfortable with myselfe and my gender expression