I wear a 40D and needed a sports bra that supported me during workouts, cycling, spin classes, etc.  This is the best sports bra I've ever worn.  The bra reduced bounce, did away witht the dreaded uniboob, and that uncomfortable feeling you get between your shoulder blades with racer back sports bras.  Based on earilier reviews, I expected the bra to be difficult to put on/take off, but it really isn't.  The only con is the underwire does come up a little to high under the arm.  I highly recommend this bra to anyone with a large chest looking for a good bra that will support you during intensive physical activity.