While bouncing may not always be considered a problem, it is when you're at the gym! If you have a larger chest (38DD), you know that most common sports bras are NOT equipped to handle the needs of a larger chested woman. They're fine to lounge around in, but they fail at the first sign of moderate activity. Not to mention the uniboob. Thank goodness the people at Champion have engineered a wonderful solution. This bra passes the jump test with flying colors. NOTHING MOVES. Nary a jiggle. It is attractive and comfortable - a bit stiff, so not suitable for all day wear. I highly recommend this bra for C - DD cups of any activity level, especially avid joggers and runners. Do yourself a favor: measure yourself and try on a few for a proper fit, and buy this bra. I agree it may run a bit small, and a bit of a trick to get off. However, the bottom line is this bra is wonderful - great price, proper support and it has increased my confidence to shake it with the best of them (without the uncomfortable bounce).