A:Answer Its all going to be based on your ear. Your ear like your fingerprint are one of a kind. So the fits are based off of average ear sizes. They come with silicone grips that you can use over the entire ear piece as well as 3 silicone tips sizes.
I personally love how they stay in my ear, from hiking, car rides, walking, running, and gym use.
Quality sound nothing is going to beat an actual plug in. I have a JBL studio wireless as well as studio plug ins and they beat these! I tried on Bose, beats, and sony, and I preferred these over them.
JBL to me has always had amazing sound quality and better for the price that you pay for. For $150 your going to get great quality sound. Just pay attention to bluetooth range and frequency if it drops and cuts out then it is under a lot of clothing. I have never had this issue.