New Design! The Synapse 3000

Introducing the Synapse 3000 | TOM BIHN

We’re proud to introduce the first-ever 3000 cubic liter backpack — the Synapse 3000:

Estimated shipping date for the Synapse 3000 is mid-2030 (though from a non-linear, non-subjective view point — time is a Timey Wimey Wibbly Wobbly ball of stuff). We recommend putting the date on your calendar because don’t blink or they’ll be gone! Seriously though — don’t blink.

Exterior webbing loops for the optional Plunger attachment will be sold separately. Color combinations will be Police Box Blue/Wasabi, Exterminate Copper/Iberian, Upgraded Silver/Ultraviolet, and there’s one color we keep on looking at, but as soon as we look away we forget what it is.

Dimensions: 0.28 x 0.19 x 0.11 fathoms
Weight: 400d Halcyon®/420d nylon ripstop: .12 stones
1000 denier Cordura®: .13 stones
Volume: 170,000 imperial tablespoons
Total O-rings: 42


TB Crew

We're the TOM BIHN crew: we design bags, make bags, ship bags, and answer questions about bags. Oh, and we collaborate on blog posts, too.


  1. Blue on 1 April 2017 8:14 am at 8:14 am

    April Fools!!! I get it now…

  2. BWeaves on 1 April 2017 9:21 am at 9:21 am

    Hahaha! I was expecting a dog to come out at one point.

  3. Jeff McGuire on 1 April 2017 9:29 am at 9:29 am

    Cost for Synapse 3000?

  4. chris on 1 April 2017 10:18 am at 10:18 am

    Does it come with a swimming pool?

  5. Lime on 1 April 2017 10:55 am at 10:55 am

    Great size for travelling! It’ll carry everything you need!

  6. Eugene Eric Kim on 1 April 2017 11:47 am at 11:47 am

    Hope it comes with that sandwich!

  7. Seesul on 1 April 2017 12:29 pm at 12:29 pm

    The color you can’t remember is, according to my late college art professor, Charles Strong, fugitive red. Red being the most fugitive color in the planet. Remember that the next time you accidentally throw a new pair of red socks in with your white laundry.

    I can still see my mom boiling big brother’s college underwear on the stove to remove the flamingo pink hue. Back in the day, one had to boil the dye remover solution in order for it to work.

  8. Kirri on 1 April 2017 3:39 pm at 3:39 pm

    Love it. Can I preorder? I want five tardis blue.

  9. Diana on 1 April 2017 9:44 pm at 9:44 pm

    Ah……….but didn’t Mary Poppins have this bag before you did??? 🙂

  10. Bijouxandbeads on 1 April 2017 9:46 pm at 9:46 pm

    You had me at 42 o-rings – now that would be a “true” fantasy! Love it, thanks for the chuckle 🙂

  11. DOREEN on 2 April 2017 3:58 am at 3:58 am

    Love these!

  12. BWeaves on 2 April 2017 10:25 am at 10:25 am

    P.S. I love all the Doctor Who references. It truly is bigger on the inside!

  13. BWeaves on 2 April 2017 12:05 pm at 12:05 pm

    P.P.S. and the Hitchhiker’s Guide to the Galaxy 42 reference! You’re my kind of people.

  14. Shannon McKenzie on 2 April 2017 8:04 pm at 8:04 pm

    This is the best.

  15. The Doctor on 2 April 2017 8:22 pm at 8:22 pm

    Just the doctor checking in. I heard that Mr. Bihn got ahold of a bit of Time Lord technology. The whole smaller on the outside ball of stuff. Next you’ll be trying to sell tiny apartments inside of a bag. That’s rubbish. I’ll send my friend Sally Sparrow round to help you with new practical bag ideas. She’s rather clever.

  16. chrisbossfan on 7 April 2017 8:35 am at 8:35 am

    It’s like Snoopy’s doghouse- but portable!

  17. Psyched on 4 January 2019 8:15 pm at 8:15 pm


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We’ve created a new page that invites you to “order” free materials that we can’t make use of but maybe you can:
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We’re retiring Iberian and Wasabi 200d Halcyon, as well as Nordic 400d Halcyon. More here.

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