I'm always searching for good sounding in-ear headphones. I haven't found any that really meet my standards for great sound and comfortable fit, until now:
These are literally the best in-ear headphones I've ever used. They sound noticeably better than even Bose's. Excellent sound clarity, bass response, comfortable fit, and they block out background noise exceedingly well.
The best part is that they're only $20.00!! I highly recommend them.