Supposedly Sony will release some intermediate sizes too, in January, February. So we will see some XL and ML (medium large) and there is talk on the forums about certain people getting a good fit as either large is too big or large is not big enough. Also new, a range of intermediate sizes down the line. But large fits fine (for me personally) and because they don’t give any, large can almost feel larger than large in my personal experience. They get the Encore out from touching the side of my ear, and keep it locked down in place, forever it seems. Air-tight too! I have no issue recommending them wholeheartedly; though as we know tip use is very personal.