Incipio's Esquire Series case for the Galaxy S8 and S8+ is a high-end -- borderline luxury -- case. The outside of the case is outfitted in sort of textured fabric, giving the phone a unique feel.
Inside, the interior is lined with with a soft micro suede. Although it's not a slim case, it...
Unless the XZ Premium wows in reviews or HTC does something amazing with the U11, this pretty much confirms the S8+ as my next phone! :)