SUPCASE Unicorn Beetle
One of our longtime favorite clear cases comes from SUPCASE. They have a case known as the Unicorn Beetle, and it's a great option for Huawei P20 or P20 Pro owners.
The SUPCASE Unicorn Beetle is a clear case on the back, so you'll still see the beautiful phone on the inside. Then, the sides have a premium textured TPU material that's black. It's basically a bumper clear shell case, but one of the best ones you can buy.
It's slim, lightweight, and has raised lips around the camera and screen. This way everything is safe when it's laying down or while in use.