Summary: So they're lightweight, comfortable, don't fall out (although they can be knocked a little askew if you wear glasses) and the audio quality seems pretty good. But. They don't last very long at all. This is maybe my fifth pair of these, and they all lasted roughly three or four months, and they all suffered from the same fault: they broke at the jack where you plug the 'phones into the mp3 player. Specifically, the wire that snaps is the one for the right ear.
Summary: I bought these for running. I already have other earphones for non-athletic activities. They sound good when properly seated in my ears and the price is good. However they don't stay in position in my ears and they keep falling out. They aren't very comfortable either. In my case they aren't fit for purpose so I guess I wasted £12.98 (including shipping).
Summary: I needed some more gym headphones after mine went kaput! I wanted sweatproof and a good hold in the ear. These are brilliant but the wire is just a little bit too short as sometimes it pulls on my ears when running if my iphone is on the treadmill in sight for a running app. Knocked a star off for that, but otherwise very satisfied!
Summary: I am very happy with these. I have never run before with headphones in and am just starting back running again after an injury and am using a podcast to get me going. I bought these because I didn't find any running headphones that got consistently good reviews and didn't want to waste my money if I couldn't get used to running with them in. However they are fantastic and importantly, they stay in my ears and are comfy.
Summary: Never ran with them in, but walked very long distances. They fit well, they're comfortable, they seem to be pretty durable and well made, and although a certain amount of tinniness is unavoidable with headphones of this type and size, I think the sound quality is pretty good. I like them and would buy them again.
Summary: Perfect for the gym. My apple headphones kept falling out and they were no means sweat-proof. Decided to go with these headphones for the over ear clips to secure them in place during exercise. The sound quality is decent for the gym and goes pretty loud, so you can drown out all the grunts and heavy footed people trying to break the treadmills.
Summary: Originally bought thes for my wife for when she is jogging. So please with them I have bought some for myself. I find these really comfy, stay in place whilst doing exercise, don't look stupid when on, and a decent sound quality. Cheap as chips as well so not too much heartbreak when they fail (which they haven't yet).