I like my E2Cs, they are decent and isolate very well, and microphonics are better than some other great IEMs I have tried (atrio m5 - Greeeeeat sound, too bad I lost it

), so that makes it a perfect choice for jogging/running/working out.
To my knowledge though, earbuds != IEMs so this is pretty irrelevant. Nor are clip-ons like the excellent ksc-75 should be recommended IMO, as the op wants earbuds, not clip-ons.
That being said, I did enough comparison between px-100 and ksc-75 and went with the former, very happy with it. If you just need some portable cans without isolation, this could be a very warm, relaxing and relatively good sounding ones with great comfort.
As for the earbuds, I heard very good things about Yuin pk series, especially regarding their bang for buck.