Summary: Sound quality is excellent and the fit of the headphones is good in ear. Howvever, the inline remote control is absolutely huge and can feel like it is weighing down the headphones and pulling them out of my ears. I need to use the clip to ensure this doesn't happen. If you are looking for gym / activity headphones, you can probably get a more rugged pair. However for sound quality and build, Klipsch are one of the best.
Summary: These were fine while they worked, but for a 'rugged ' set of headphones they have very thin cables and they only really lasted me about 6 months before i started to notice a degradation in the sound quality.
Summary: I purchased these to replace my well-used Klipsh S3i headphones. I chose these as I had been pleased with the sound quality and comfort of the S3i headphones. Unfortunately these latest model have not lived up to my expectations. A little clip is included with these headphones so that you can clip them to your clothes and position the microphone and controls. The problem with the clip is that it does not stay attached to the headphones and falls off.