Quick look: Microsoft Flip Shell for Lumia 640 XL

[Windows Central]

Carry a couple cards, ID, or cash while keeping your Lumia 640 XL protected against scratches and minor impacts.

This OEM flip case keeps things slim since the back actually replaces your Lumia 640 XL's existing battery cover. Once you snap it into place, you're good to go. The battery cover is identical to its stock predecessor, sporting a smooth finish with openings for the camera, flash, and speaker. The front has a pebbled texture with Microsoft branding at the bottom.

Full story from the WindowsCentral blog...