You are here: Home Replies Reply To: Why do women jeans have zippers? Reply To: Why do women jeans have zippers? March 20, 2017 at 4:00 am #7082 YICParticipant Pretty interesting insights, i agree with you all. It will be difficult to fit in to a jean without an vertical slit which can be closed later on. Hence, this could be the reason of having a zip in women jeans as well.