This will take courage. Be assured however, that God will provide this courage if you will but ask Him. We have heard Christian women defend the practice and fashion. However, it seems that our revered mothers and grandmothers managed well in skirts and dresses. This is very debatable.
Pants clearly outline a woman's form and can be provocative to a man's baser thoughts.
And so there are and will be those who will violate or ignore His command. When this is true of a real believer-be sure it will be a most costly decision. It breaks fellowship with the Lord. It will lead to further transgressions and an increasing drift from God and His Word. Once you reject the light-the light in you will become darkness.