I bought these headphones for use at the gym.
I've tried ones that hook over your ears or earbud ones and when I get a bit sweaty, they just slip out.
After much research and advice, I decided to opt for these. I cannot fault the sound quality or the fact they actually stay in place when I'm on the treadmill but I must have really odd ears. My right ear was absolutely fine yet after 2 hours in the gym, I could barely touch my left ear, I was so painful and bruised.
Sadly I'm going to have to return these......gutted as I though I'd found the perfect headphones :-(