I lived in these camisoles when I was pregnant.  They are thin and perfect for layering.  I literally wore one every single day during my pregnancy.  I felt much more comfortable with something form fitting around my huge belly.

Now my little one is 2 years old and I still wear one of these camisoles just about every day.  I find them to be extremely comfortable so I didn't see any reason to stop wearing them.  Since they are stretchy they fit fine even though I'm no longer pregnant.

One other benefit of the stretchiness of these camisoles is that you can easily pull the straps down to nurse while keeping your tummy region covered.

They are a little pricey for maternity wear but they really aren't bad since you can still wear them after your pregnancy.  In fact, the reason I'm writing this review now is because I'm ordering more.