Almost forgot. This is one of the tricks I use to make something hijab appropriate.
I found this cardigan/tank set in a color that really works on me. However, the tank ruined everything by being low cut and the cardigan was constructed in such a way that you couldn't hide what the tank revealed. So I walked out of the store.
And walked back in 10 minutes later. I took the tank off the hanger and examined the back side of it which happened to be at neck level. So I tried the set on with the tank backward. It didn't look "off" and it was no longer low cut (only in the back but the cardigan easily concealed that). With the cardigan and a matching hijab (and the tag removed), it was perfect.