Ok, I was scared of ordering these after reading the wildly different reviews, some say the run super big, others say super small.  What's a girl to do?  Well, I am an older woman (age 54) and I'm overweight.  I wear a size 46DDD bra.  I need good, supportive bras when I'm out and about.  But at home, I just need a bra to haul the girls up to a somewhat "normal" level.  I'm not looking for excellent support, I just want something I can wear under tshirts and nightgowns without scaring the grandkids.  So, even though Walmart online was more expensive than amazon, I have a Walmart in town, so returning them is super easy.  So I ordered a 3X, a 4X and a 5X.  (according to the chart, I should be a 4X).  I tried them all on, and to tell you the truth, there wasn't a whole lot of difference between them.  So I decided to go with the 4X.  I wore it for 20 hours, and I can honestly say, this is THE most comfortable bra I've EVER worn, bar none.  It is MUCH more comfortable than my Walmart lightweight sports bras.  PLUS, it doesn't give me the dreaded Uniboob.  It doesn't "life and separate" really, really well, but it DOES do better than "normal" sports bras.  So, I am returning the 3X and 5X to Walmart, keeping the 4X and will be ordering a couple more 4X's from amazon, since they are less expensive.  So, this Gramma is happy with these bras....wouldn't wear them to church or out to eat, but they are great for around home.