I don't quite understand the desire of some IEM manufacturers to use loops over the ears as a support mechanism for bulky IEM's, they do not and IMO cannot actually rest on the tops of the ears, and all tension from the cord is still borne almost solely by the insertion into the ear canal.
 
A great sounding headphone, but required expensive foamies to even hope of getting a secure fit, they would constantly slide out and need readjustment.