Sound Quality is fine for swimming, you are swimming after all and dont require 3D studio sound with mega-bass or need to hear every tiny chord being played!
They stay in the ear well, I have big ears and they are fine! I never could handle buds as ...Read morethey just drop out, but these over the ear loops do the trick.
You do need to let them dry out after a swim, I put them on window sill.
Wire is very thin, though I'm sure this is to make them light and not get in the way when doing your swim at full speed for an hour. However, I think if you gave it an accidental tug, you would need to buy another pair. So good for speeder up and down the pool, but if you lark about with the kids, you may find yourself buying more than one pair! Having said that, mine are still working fine, so it may just be an illusion.....
SUPER FAST DELIVERY, and good contact from site.
All in all, good purchase and I would recommend.