Christians weather male or female should cover their bodies and not expose parts that could turn the eye of the opposite sex.

Woman should not wear sleevless tops or dresses. Short sleves are great. Woman should not wear dresses or skirts above the knee. We are to cover our bodies and not show what we have. That is where immorality will come into play, either by the part of the person wering it or the roaming eye.

I attend an IFB church and they believe all woman should wear skirts all the time. I myself do wear skirts all the time but not because my church says so. It is because it is what God wants us to wear. Now I do not condemn the women that do wear pants. On occasion I do thow on a pair of jeans to go out in if it is super cold out.  And I wear pants around the house.

Now, my own opinion. As long as the person is appropriatly covered and not showing a lot of skin then I feel it is ok.

I see why God wants us to cover. We have a few women that come into church with the REALLY high heels, short skirts, and sleevless tops, and you will see most of the men, married or not, glaring at them quite often.
People are human, and feelings will arouse, men and womens thoughts will wander.
There should be a dress code for church. This is my own opinion.