Originally Posted by ihatemarmite:
“I have the same question as ronaldo. Got an ear infection from in-ear phones (new ones supposedly) so am looking for small external earpad ones. Sennheiser MX100s apparently let everyone listen to what you are listening to which isn't good in London. Antisocial from both sides of the argument.
I need to use them for gym and general walking about, but not noise cancelling or I will get run over - generally not a good idea. Can you use external headphones in the 'summer' weather though?”
I always find in-ear headphones fall out when I run in the gym. I ended up getting a pair of Sennheiser 'over the head' style, which are perfect. I don't know the model number as I don't have them with me

As the gym is noisy, the fact that sound may leak isn't really an issue.