Definitely the most secure set of bud phones I've had. They come with 4 different sets of ear wedges to get the fit dialed. While the fit is good the sound quality on these is definitely not studio quality. You never get a great seal between your ear and the bud. This might not be a bad thing if you are doing something where you would like to hear your surroundings. I also found that if you have anything pushing in on the buds they can get a bit uncomfortable like a goggle strap. All things considered these are some great headphones but I wouldn't count on them being the answer to all of your personal audio quandaries.