Life & fun · alternatives · 2026

24 alternatives to Flack Sack

The Theft-Resistant Drawstring Backpack

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Flack Sack launched in 2016; newer entries below may have overtaken it.

1. 1
   Hackpack▲117

   A highly configurable laptop bag

   2016 · its alternatives →

2. 2
   RiutBag▲82

   The rucksack with no outer zips, to keep your stuff safe

   2014 · its alternatives →

3. 3
   Slicks Travel Backpack▲210

   The Swiss army knife of backpacks

   2016 · its alternatives →

4. 4
   Under-The-Jack Pack▲282

   Ultra-thin laptop bag you wear under your jacket

   2015 · its alternatives →

5. 5
   The Modern Day Briefcase▲74

   Is it a backpack or a satchel? It's both!

   2016 · its alternatives →

6. 6
   THREAD INTERNATIONAL A Better Backpack▲80

   The bag that does it all, made from recycled plastic bottles

   2018 · its alternatives →

7. 7
   SERK: The Duo-entry Drawstring Bag▲4

   The drawstring bag reconstructed for true versatility

   2018 · its alternatives →

8. 8
   Anti-theft external usb charging backpack▲7

   Great anti-theft backpack

   2017 · its alternatives →

9. 9
   Aer Duffel Pack▲118

   The Modern Office and Gym Bag

   2014 · its alternatives →

10. 10
    TRAVELAB Freedom Pack▲128

    No more 'frontpacks' when you travel

    2017 · its alternatives →

11. 11
    Minaal carry-on▲103

    A new type of backpack, designed for travelers

    2014 · its alternatives →

12. 12
    GoBag▲78

    A vacuum-compressible carry-on backpack 🎒

    2017 · its alternatives →

13. 13
    PackBuddy▲121

    Simplify your packing, enjoy your trip

    2024 · apps.apple.com · its alternatives →

14. 14
    Helixot▲124

    Waterproof & submersible backpack for outdoor enthusiasts

    2017 · its alternatives →

15. 15
    Cyberbackpack▲107

    The backpack Tesla never made.

    2022 · cyberbackpack.com · its alternatives →

16. 16
    Pack▲120

    pack logos

    2015 · its alternatives →

17. 17
    SlimFold™ Slim Pack▲79

    A weatherproof minimal commuter backpack

    2016 · its alternatives →

18. 18
    Liger01 Backpack▲74

    Robust, modular, fun, backpack

    2018 · its alternatives →

19. 19
    SHIELD BackPack▲5

    The ANTI THEFT backpack that protects you too

    2017 · its alternatives →

20. 20
    Wexley Urban Backpack▲97

    Modern backpack with USB charging port and other features

    2018 · its alternatives →

21. 21
    Notabag▲77

    Smart combination of a shopping bag and a backpack.

    2020 · its alternatives →

22. 22
    FlexPack | The Best Functional Anti-theft Duffle & BackPack▲6

    Combine security, storage, convenience, comfort, and beauty

    2018 · its alternatives →

23. 23
    GaffGun▲66

    Clever way to keep people from tripping on cables.

    2014 · its alternatives →

24. 24
    Bobby▲5

    The Best Anti Theft Backpack

    2016 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →