Not anything special, but they get the job done, so to speak. Most people just use adidas style flat bottom slides for inside. Tbh, if I want to listen to music in its crisp format, to hear the highs, mids and lows, Ive got other headphones for this purpose. Comfy shoes, a bit big in the toe box but having wide feet, Im okay with that. I guess my left ear canal is slightly smaller? It still stays in and I can walk around and use them, but I dont get any noise cancellation on my left side and higher frequencies are gone without the seal. It?s ok. I love them and so do all my friends. I originally wanted this headset just because it came in a white version to match my mouse and keyboard for my new PC, but its release time was delayed so I ended up buying a much more expensive headset from a different company that just. 5 Wide was available in the color I wanted. It fits really well and gives it a good feel in your hand without adding bulk.