Klipsch Image X10 Noise-Isolating Earphone

I am not going to try to describe the sound of these IEMs. I am new to the audiophile world, and don't have the appropriate training to give anyone a good description of their sound. I am sure that there are plenty of posts out there that can help with that!   That being said, I love the sound of these phones, but I hate everything about the cable. It is very stiff (a property that has only gotten worse in the years that I have owned them) which either 1) Transfers horrendous amounts of noise into the ear from ANY movement against clothing, etc or; 2) Causes them to come unseated in the ear canal which causes noise leakage and immediate loss of sound.
If you are looking at these for noise isolation at the gym, I recommend going somewhere else, since within two steps you will be peeved, and a lap around the track will have them dangling from your neck while you mutter obscenities under your breath at the wasted money.
That being said, these are great on a plane. They are so small that even in their carrying case they are smaller than a deck of cards, and in your pocket they are hardly there at all. They Isolate noise very well if you seat them correctly, and any sedentary 'activity' like flying minimizes the cord's negative qualities.
Overall I am happy, and will not buy another pair of IEMs to replace them until I go custom, and that won't happen until I either lose them or break them.

I carry these everywhere with my IPOD Classic. It's hifi on the move, especially on trains. They give a clear full-range sound and the isolation from the double flanged tips is very good. They are very comfortable to wear compared to the Senheiser and Bose IE's I had previously.

It's a lot cash for something so small but I'd buy them again if I lost mine.

Those earphones are very nice, strong tight bass, mids are detailed but a bit lacking, highs are very smooth. Soundstage is ok, but I don't have much experience on it (worse than IE8 for sure). I love the warm sound, and it really reveals low quality compressed songs. The build fells fragile. I mostly use it at home, and I had no problems with it. They are very comfortable, but they stick out from my ears when I wear them, so you can look a bit funny. The isolations is also very good, for me the X10 were almost as good as my Etymotics!