I am looking for a IEMs that hlave a flush to the ear fit and minimal protrusion outside of the ear. Part of their duty will be for listening under a motorcycle helmet and they shouldn't be able to get pulled off when the helmet goes on. For other quieter times, I am also looking for something...

These seem to have finally hit the market.  Good reviews on their other products, has anyone heard one yet?   http://ifi-audio.com/en/iLink.html