I'm a big fan of the Bose Soundsport wired earbuds, even for non-athletic activities. They sound good, stay in my ears and are super, super comfortable. They usually retail for $100 but occasionally go on sale for $50-60.
If nothing else, I now appreciate the importance of a proper fit. A mediocre pair of earbuds with the right fit can outperform the higher end IEM's with an improper fit. I may have to look into getting some decent custom tips.
There's plenty, Skullcandy for example. Their earphones are pretty easy to fit. Not sure about their headphones though. I can't say the headphones are "extreme light". You better get an earphone, that would be best for you.