Can a woman pray alone in tight fitting clothes?

So it's more appropriate to be wearing clothes that are not tightly fitted, particularly when praying. However, strictly speaking, from an Islamic perspective, is the Salah valid as long as your Awrah is covered? The answer is yes, the Salah would be valid as long as all the relevant parts of your body are covered, even if they are tighter fitting. But as I mentioned, it's more appropriate to not wear this type of clothing whilst you are praying to Allah.