My gf is a fitness competitor. Her implants are saline, under the muscle. I don't know the size or whether they are high profile. However, I highly recommend under the muscle. She has no problems with training. Her boobs are so firm and high that she has no need for bras. I personally prefer the firmness over "natural", but that is a matter of personal preference. There is absolutely no rippling. You can't tell she has been enhanced except to the extent that you really don't see girls as lean as she is with a rack like she has unless they've been enhanced.