1 Surround Sound - HEAR IT YOURSELF! Checking: Nope, the stiffness isnt really adjustable, so that may be an issue for some people, but I quite like it. They are light and easy to walk in. Its there but lacks that piercing snap of higher end audio. I have since purchased a beading needle and have not had the same issue, which is why I am rating it 5 stars. I have bought so many pair of studs for my top holes, only to lose the back off of one before I notice, and there goes the pair. They are thick enough for you to not feel if you walk over a rock or something it will bother you, then they also are thin enough that you can walk like your dont have anything on your feet. my daughter normally wears a size 13. It works okay, but is not fast-charging. PS: I worked in audio some time and know enough that this should not have been a problem.