My search continues for a comfortable, racer back style bra with front closure that holds you in securely.  This is one of the better ones I've purchased.  I wear a 34DDD, and finding something that meets all of my needs in that size has been a big challenge for as long as I can remember.  I have chronic back pain, so strapping anything around is extremely uncomfortable.  I can make it for 3 hours in this one before it reaches the, "I can't stand it" level, which is twice as long as other brands and styles.