I did not want me to buy an overpriced sports bra in the business and just try here again, but simply put: for use in sport a bit. I Size C, sometimes D, I've ordered M and beginning to think if this is too tight may be a bit, then got me thinking that maybe what is better for sports but, um NO. Although fits well around the ribs, but there's really zero maintenance, because you can go for a run just as well without a bra, that's just uncomfortable with the thing. I still prefer drawing to an underwired bra and running. And when the normal jogging can not even put, I wonder, what is actually suitable. You could sleep in it maybe.