SUPCASE Unicorn Beetle Hybrid ($13)
Supcase is another brand you probably know or have used before, and they're finally offering cases for the OnePlus 6T.
The Supcase Unicorn Beetle is the companies popular thin, clear, bumper shell cover case. Essentially they're using a completely clear hard polycarbonate plastic shell, then they add a durable impact-resistant TPU material to the sides. That's the bumper part of the case.
It's worth mentioning that they've added a subtle curve to the back body of the case, that way the back and camera lenses stay off tables and surfaces. Keeping everything free, clear, and safe.