Typically I blow out the sides, roll them over the sole or tear the stitching so I am pleased in that regard. Turnsnout it is a size 12. They stretched out fast and my foot slid around in them after a few hours of wearing them. work well, The sound is surprisingly very good quality and finally I can listen to songs without having to use my speaker again But: it is not possible to also attach the auxiliary Garmin Charge Power Pack The sound is quite good (though a bit bright due to the design), but this devices is not really about the sound. Only one earpiece delivers sound. Not too heavy. Slow network speeds with AT&T (I live in a major city so this shouldnt happen, period). I didn?t think anything of it.