Dekoni Mercury Foam Eartips (Medium) ETZ-MERCURY-MED

Amazing foam eartips fast shape reform allows these to be easily removed and reinserted

These are fine for what they are but they were a disappointment to me. First, they're too short (ie, not enough length on the foam) so the isolation was only so-so at best. Second, the foam itself is more like a foam mattress than the memory foam some competitors use, that compresses to a thin roll and slowly expands in your ear. These compress and expand basically immediately, you can't compress, insert and wait for them to expand. This made getting these deep into your ear with a good seal even harder. The result is that the IEM was robbed of bass, and the treble was sharpened by comparison, making these sound less pleasant as well. They're not bad, but they're just not good. Comply foam from one of their more isolating sizes will almost certainly be better. These will no doubt last longer, but - does that help when they're less fit for purpose?