I purchased this bra in a 38F with a slim body, and found I needed a 40D, which is quite a difference.  I use it when I do my yoga and other exercises, I have fibromyalgia and chronic pain, this full support sports bra is excellent for when I'm in a flair, the straps are thick, the back is excellent, the only problem is that there isn't division between my breasts, I even wear this bra to bed...I will be buying a few more.  My first purchase was in December of last year and with hand washing it is holding it's shape, and it gives the girls excellent support.  What is nice with the extra material on top, it's like having a camisole on for modesty.