Dekoni Audio Bulletz Gemini 泡棉耳塞

Foam tips usually feel flimsy, but these have held their shape perfectly even after a month of daily gym use. The seal is deep enough that I can hear the bass properly now without any outside noise leaking in.

The memory foam squishes down easily and expands back just right, which I wasn't expecting from tips this soft. My IEMs finally stay put during my whole commute without me having to adjust them every few blocks.

These foam tips seal so much better than the silicone ones I had, and the memory foam really molds to your ear shape after a few seconds of warming up. I wore them through a two-hour commute and totally forgot they were in, which never happened before.