I was unsure ordering online as some of the reviews seemed contradictory to each other on sizing, but went ahead and followed the size chart provided and tried them on when they arrived. I am a size 10 in clothes (which means sometimes I'll run an 8/Medium and sometimes a 12/Large) and can range from a 34D/DD to a 36D/DD depending on the brand and style of bra so I was unsure whether to go with a Large or XL. Truly stuck in the middle of the size chart ranges. Since there were only a few reviews mentioning my bra size I went ahead with the XL and tried them on just now. They fit comfortably and were not tight in the straps or loose in the band which is what I sometimes see in comfort sports bras. There were no rolls or bumps created and no gaps either so I believe the XL was the best choice. I do agree with some of the posts that these are for low to medium impact and not for running for larger chests. I have not washed them yet, but can easily remove the pads and wash on gentle like my other padded sports bras. The biggest plus is you really can't beat the price and the criss-cross straps are really cute. Overall I would recommend these and I would stick to the size chart if you are unsure. Should they shrink drastically or tear within a couple of wears I will revise my post.
Edit Add: Wore them all around Disney for long days of walking and they were perfect. Also washed them a few times now on delicate and hang dry and they hold their shape and are still as comfortable as ever. Would definitely recommend!
Edit for New Set: I purchased a new set and had to remove a star because they definitely changed something in the fit. I ordered the same size again, but this time the gray criss-cross style and they were loose. The removable pads also constantly bunched up and made a weird pattern under t-shirts. So I can no longer recommend the sizing on these and would likely not order again.