I've only used them at home in front of my computer so far, using the standard silicone tips (medium size). I usually have a problem with silicone tips as they tend to fall out, but sitting still in front of my computer wearing these, I haven't had any problems yet. Had a 8 hour straight listening session today without taking them out once! That has never happened to me before :) Can't say how they fare when moving around tho! As with every other IEM I have ever used I will also try these out with comply foam tips. Just haven't had the chance to order any just yet.