I was looking for a really comfortable bra for wearing on long flights.  I was excited to see so many people comment that this bra ran 'ran extra large' and to order a size down.  I ordered the extra-large expecting it to be very roomy, especially across the back, but on me at least, it was a typical fit.  In general, this is a comfortable, unconstructed bra, which I prefer, but I have been wearing an almost identical in style and fit but less expensive, bra from Barely There, for many years and will stay with them.