Many modern DJs are moving toward "slim" or modular setups. Tools like the Jetpack Slim focus on being diminutive for digital-age needs, where your pocket might already be big enough for your primary music library.
“Once it actually arrived, the small nuances (hypalon zipper holds, unique hardware, elastic extenders) really grew on me. The 3-zip design lets you access the full contents at any time.” Reddit · r/backpacks · 6 years ago dj sherly 3zip
While there isn't a single definitive technical review from a major outlet, the "3Zip" designation typically refers to a specific (often associated with brands like Mystery Ranch), which allows the bag to be "ripped" open for immediate access to all contents without digging. Key Features of 3-Zip Systems Many modern DJs are moving toward "slim" or modular setups