Sharai Parda From Non Mahram
There is no Shari parda in Islam. It is some manners need to be adopted both by men and women while they meet. It is to protect their gaze and their private parts. And if the women have adorned themselves they are asked to cover their adornment except that status open like hands and face they need not to cover it. See verses 24:30-31. And the series on parda by Ghamidi saheb on YouTube.