Kindly refer to the following link(s):
Can Women wear Shalwar Kameez and go out? How should a Woman's Outer garment be?
Can women pray in normal clothes(Shalwar kameez)or must they wear an outer garment?
What is Jilbab (Outer-Garment)?
I wear loose Shalwar Kameez with hijab and Shawl, is this OK?
If she prays in tight clothes without an abaya over, are her prayers valid?
Clothes cover my awrah, are loose Must I still wear abaya (Outer garment when I pray)