These neoprene soft harddrive cases would work well as protection for the device. Say if you put it in a jacket pocket and it might fall out.
These are almost impossible to find these days. They used to be all over Ebay, but have been replaced by hardshell cases.
There is one on Amazon, in case others find this as smart as I do. Bubm brand.
I zip it up with the cord dangling out.