Summary: Seems to be working well for my portable hard drive. It has generous space in it for this purpose. I'm leaving the foam insert that it was shipped with inside the pouch with the hard drive for added protection.
Summary: Just right size for external disk drive (WD Passport Wireless). Zipper is strong and easy to use. Storage pouch holds a short cable and extra SD card nicely. Doesn't scream "electronic device enclosed" which is nice. Listed measurements are accurate.