These sports bras come in 2 sizes only, but I thought I'd take the risk as I wasn't wearing them for running.  These sports bras run super large.  I wear a 38DD and bought the larger size.  There is hardly any support from the bra and less if the padded inserts are taken out.  There isn't even enough support for walking the dog.  Unfortunately, after two washings, the padded inserts disintegrated and the covering peeled off.  That is very disappointing.  I would not purchase these again and do not recommend them if you need support or durability.