I've had a few different types of in-ear earphones. The best for comfort, sound quality and isolation were some Shures - they were gorgeous, but after I the 4th replacement set died in almost as many months, I gave up on them.
Which seems to be a bit of a pattern: I appear to be the kiss of death to earphones.
However .. for the last 9 months I've had some
ME Electronics S6Ps (in black so not quite as garish as the in that link

). Certainly, they're not quite as comfortable, don't sound quite as good and don't have quite the same level of sound isolation as the Shures, but they're plenty good enough and - more to the point - have lasted
way longer. They're also somewhere between a quarter and a third of the price.
The mic also works very well.
I have no hesitation recommending them.