IPhone X/XS Spectrum Series See-through Rugged Cover
If you want clear but also want a touch of colour, Spectrum Series Clear Cover for iPhone X/XS gives you just that. It functions like more of a bumper with a built-in rugged clear back guard.
You can choose many different colours for the trim, or just opt for clear. The lip around the edge is also raised just slightly in order to protect the screen should you drop your iPhone face down.