Once purchased, you can manually create your own ZIP file and keep it on a hard drive for life.
If you truly want the MP3 files (like a ZIP, but clean), buy the album:
If you don’t want to spend money but still want the “best” full album experience, streaming services offer offline downloads. While this isn’t a traditional “zip file,” it functions the same way on your phone.
If you're looking to download the album, here are some tips:
One Direction's "Up All Night": The Best Way to Relive the 2011 Pop Revolution