I got the black bra recently in size M and realized after I tore the tags off that this was a bit tight.  I actually had to have someone help me in and out of it.  I'm between a 34C and 36C and this thing was crazy tight.  I know that you need it to be snug since it's a sports bra, but I'm not sure if order up a size if that will be better.

I got the&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Champion-Women-s-Shape-T-Back-Sports-Bra/dp/B000LUY0XC/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Champion Women's Shape T-Back Sports Bra</a>&nbsp;at the same time in 36C and it fits beautifully.  It's a bit more expensive, but I think it's worth it knowing that it is true to size.