It is thick enough to actually keep the case safe from being damaged but the hook provided was a bit flimsy so I changed it for my own. I bought these to complement the red metal Airpod cover I bought. Belkin support is good, but the adapter is flawed. At this price point you wont find a better sounding pair of headphones. For instance, even while typing this, I have to constantly backspace to make the "t" and "f" work. It arrived and only includes 2 x 24" rails. It does a great job and captures higher freq better than at2020. The most reason I cannot give a 5 star is its annoying charger design! Of course there are certain market sectors that think if it doesn?t thump your chest and rattle your skull, then it ain?t music, but for someone looking for high quality, balanced sound imaging it can be annoying. Im not happy with this item.