Introducing the Synapse 25

TOM BIHN Synapse 25

The Synapse 25 is a carefully calculated, supremely organized backpack, designed for day hiking, everyday carry, and ultralight travel. No mesh pockets clutter the exterior of this bag, nor extraneous straps festoon it; in it, you’ll be able to carry more than you would imagine, and no one will be the wiser.

You guys have been asking us for a while to make a bigger version of the Synapse 19 — here it is. Seems easy, right? Just make the whole bag bigger? Not quite. Take the water bottle pocket, for example: if we had simply made the Synapse 25 a larger version of the Synapse 19, the water bottle pocket would have been needlessly long. That’d be wasted space, plus you’d have to reach farther in to pull your water bottle out. Instead, we took that volume and allocated it to the bottom pocket (where it can serve good instead of evil).

And we didn’t stop there. The Synapse 25 debuts five design updates:

Webbing Loops for Cache with Rails system: Inside the main compartment are four unobtrusive webbing loops, two fore and two aft, to which you can secure the optional Cache with Rails (available in sizes specifically for every Apple laptop and iPad; most sizes fit PCs, too). When you add the Cache with Rails, the Synapse 25 becomes a “checkpoint-friendly” laptop backpack. You can even attach two laptops or devices inside the Synapse 25 (note that only one can qualify as “checkpoint-friendly” at the airport; for everyday use, it’s great).

Bottom Pocket Piping: The bottom pocket is now piped to help it keep its shape, even when empty.

Bottom Webbing Loop: Because we care about your safety, we’ve added a 1.5″ / 38 mm webbing loop on the exterior bottom of the Synapse 25 that’s ready to accept the Guardian DF Light Strap-Mount — highly recommended if you ride a bicycle or walk in the dark.

More O-rings: Yes, we listen — we’ve added several more O-rings to the Synapse 25, including one O-ring each in the water bottle pocket and top exterior front pocket.

Reconfigured Organizer Pockets: Instead of three pen slots in the left front zippered pocket, the Synapse 25 has one pen/pencil slot and two wider slots for multitools/knives or just more pens.

Synapse 25. $170. In colors Black/Steel, Black/Wasabi, Black/Iberian, Olive/Steel, Navy/Iberian, Navy/Ultraviolet, Steel Dyneema/Steel and Steel Dyneema/Wasabi. Available for pre-order; ships by mid-May.

TOM BIHN Synapse 25 Organizer Pockets

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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.

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News Briefs

We’re retiring our Road Buddy Duffel 36 and Road Buddy Duffel 60 to make way for new designs. If you’ve been thinking about a Road Buddy, you may want to order soon, as we won’t be making further production runs.

We’ve updated our Planet page with additional efforts: we’re operationally carbon neutral, members of 1% For The Planet, we offer a vegetarian company lunch, and over 80% of our materials are bluesign® and/or OEKO-TEX® certified.

Mark your calendars! Our Seattle Factory Showroom will be open the following Saturdays: Dec. 14th 2019 and, in 2020, March 21st, June 20th, and September 19th.

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