These earphones are pretty durable compared to most in-ears. They are probably more durable than the Head-Direct RE2s and some of the other in-ears recently reviewed on this site. The body is extremely tough and so is the cable and the jack. I cannot find anything that is constructed in a bad way durability wise which is a definitive plus. The generally rugged rubber backed construction means that they withstand abuse much better than most solid plastic in-ears. These are more likely to survive a week in my pockets than a pair of Westone UM2s or basically any other earphone with a hard plastic part sticking out of them.
