They are cultural practices that were eagerly adopted by islamists, i.e. the more extremist fundamentalists, because they accorded with their extremist views. 

They were not the practices at the time of Mohammed, and he never suggested such extremist practices. These came much later, and have been imposed legally on women where the islamists have gained power. 

Wearing the face veil and even the hijab are strongly contested practices within the Muslim community itself.