It made me feel strapped in and bounce free but yet it also felt like it was too much.  While it may help keep a large chested woman from bouncing it also felt like I was wearing an extra shirt under my t-shirt.  In other words the sport bra felt like it was something that should be worn by itself and not under anything.  Since I am not one to wear skimpy tops, I would be too hot and uncomfortable working out in this bra.  Its situations like this where I wish I could get a breast reduction.