Got a few TKL keyboard cases.
two Grey and two black

inside view. You can see the flap that lays on top of the keyboard

a closeup of the flap

KMAC II all loaded and ready to roll

Can't forget the USB cable

The build quality on these is exceptional. The flap is sewn in and attached very well. The zipper is very heavy duty. Also, they are almost like a box, in the sense that the protective outside is pretty rigid yet the cloth inside feels like felt.