Apple 61W USB-C Power Adapter Case (for Macbook / iPad)

This is a simple but robust case for the (expensive but fragile) Apple 61W USB-C Power Adapter. As listed in the Apple web page, the 61W charger is included in the:
-iPad Pro 11-inch
-iPad Pro 12.9-inch (3rd Generation)
-12-inch MacBook
-13-inch MacBook Air with Retina display
-13-inch MacBook Pro - Thunderbolt 3 (USB-C)

Features:
-recess for wrapping the cable around the case
-does not interfere with the plug (charger sits flush with the wall outlet even with this case)
-minimalist l