Check out the great review on Gadgetnutz...
http://www.gadgetnutz.com/modules/news/article.php?storyid=411
"Truth be told, I have never used a more comfortable in-ear style earphone. These were so light that I really didn't know they were there. The seal was tight which blocked out most all the outside noise around me. The added advantage to such a good seal is that I didn't have to turn up the volume of my iPod to dangerous levels. Usually, even in the noisiest environments, I only had to go to about half volume to produce loud and beautiful sound.
So Stick it in your EAR!