So this is probably the best laptop backpack for frequent travel

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There was a time, not long ago, when I would have considered the battle for the world’s best laptop backpack to be one of such insurmountable difficulty that debating such idealism would be a mere exercise in futility. So many different backpacks exist that it would seem reasonable to conclude that 100% of all specific needs can be met, by some backpack, somewhere, and it is merely a matter of digging through the 95% of unsuitable options before settling on The One, with no objective champion to reign victoriously over what is clearly a subjective set of requirements.

Or you could simply conclude the opposite, which is to declare the problem insolvable and claim nothing will ever work out perfectly and there’s no reason to bother trying, and you can just get something decent and call it a day, and remain mildly dissatisfied for the remainder of your existence. As a pessimistic perfectionist, I was firmly within this camp.

So it was something of a surprise to run into a backpack that, despite swimming in a sea of a zillion competitors, manages several things I’ve simply never seen before. It’s the Tom Bihn Synapse, and I’ve been salivating over it had my eye on it for quite some time.

Tom Bihn Synapse 25 flat
Mmm, symmetry.

Tom Bihn recently invited me on a tour of their Seattle factory, where they handle every stage of design and production (except when field testing, of course), so whenever they have an idea, they can walk out of the office and right onto the factory floor and do it, instead of emailing a factory on the other side of the planet and hoping it all works out.

They’ve built a reputation for super-tough materials, flawless construction, direct-to-customer relationships (you can’t get their gear anywhere else), great customer service, and clever design details, all of which have resulted in a rabidly loyal fan base, many of whom end up collecting the whole set.

They recently offered me a Synapse 25 to review, along with a gift bag full of packing accessories, and for a pack described as “the last you’ll ever buy,” I was excited to try it out.

The Tom Bihn Synapse 25

Let’s start with the basic details. It’s a 25 liter, very “regular” sort of pack, the kind you’d take to work or school, or just randomly carry wherever, from city wandering to day hikes and so on, with included (but removable) sternum and waist straps to accommodate light or heavy loads.

Specs:

  • Capacity: 25 liters
  • Height: 20″ (51 cm)
  • Width: 13.4″ (34 cm)
  • Depth: 9″ (23 cm)
  • Weight: Approx. 1 lb 13 oz (820 g), depending on fabric options
  • Price: $195 (+$35 for removable laptop sleeve)

(There’s also a 19 liter version that works much the same way, but this review is specifically for the larger one.)

A few things worth mentioning here:

  • It’s almost a full pound lighter than certain similarly-sized laptop backpacks, for a variety of reasons that I did not find problematic.
  • Its dimensions are just a bit smaller than maximum carry-on requirements for most airlines, meaning it would be a great carry-on bag.
  • Speaking of size, it’s far more spacious than you’d expect, because Tom Bihn bags are measured according to ASTM International standards, which involves filling the pack with plastic spheres until it’s full, then emptying them into a measuring chamber (a process which I got to see while visiting the factory), whereas other manufacturers often use different methods, which can produce wildly inflated numbers. I really enjoyed taking a look at Tom’s balls learning about these behind-the-scenes aspects of design, which is why Tom Bihn’s 25 liters might be more like someone else’s 30, or even 35 (for reference, I was able to fit everything on this list in there, though just barely).

Layout and organization

This pack is for the organizationally obsessive. Observe:

Tom Bihn Synapse 25 front
There’s also a bike light attachment strap along the bottom edge, a little too tucked away to see in this photo.

As you can see, it offers a whole lot more compartmentalization than a typical backpack, with five spacious pockets in addition to the full-height main chamber, yet with an understated simplicity that doesn’t announce itself as anything more than a typical backpack.

But what’s also apparent is what it does not have: No dangly external compression straps, and no snaggy mesh side water bottle pockets.

Ordinarily I’d consider the lack of side water bottle pockets to be an instant deal-breaker (I’ve complained before about poorly-designed side pockets that are incapable of holding anything larger than a pencil) but in this case, it’s actually the Synapse’s best feature.

The defining characteristic of the Synapse:

The water bottle pocket hasn’t been removed, but rather relocated, to the center of the pack, where it can never be off balance:

Tom Bihn Synapse compartmentalization
Pockets! So many pockets!

As you can imagine, placing the heaviest item in the center of the pack makes a huge difference in comfort, keeping the weight properly balanced instead of dragging you sideways into lopsided awkwardness, or forcing you to place heavy items on the opposite side just to balance the load, before removing them after you drink the water from the opposite side. Plus it zips shut, so the bottle can never fall out. I don’t know why no one seems to have thought of this before, and I can’t see myself going back to the normal way anytime soon.

By the way, that water bottle is a $70 Grayl, which is not only a water bottle, but also a filtration device. As you can imagine, it’s not something I want falling out of a woefully insufficient side pocket and rolling under a bus while I walk away, which is why I was so interested in the Synapse in the first place. Since a filtered water bottle is both heavier and more valuable than a disposable plastic water bottle, centering it in a securely zippered pocket is the perfect solution.

Never again shall I gaze incredulously at the stupidly tiny and ever so fragile side “water bottle” pockets that couldn’t possibly hold the water bottles that are sold in the same stores as the pack if their designers’ lives depended on it. Never again I say!

Okay, rant over. For now, anyway.

Remaining exterior pockets:

The central placement of the water bottle pocket determines the layout of the remaining pockets, which surround it on all sides:

  • The side pockets are each big enough to hold a light rain jacket, or maybe even an ultralight down jacket (though a vest would be more manageable). The left has a few pen or pencil slots, while the right has a microfiber-lined smartphone slot. Both are designed to expand or contract depending on the size of the water bottle placed in the central compartment (it can handle 1 liter bottles), so a skinny water bottle will allow you to carry more in the side pockets.
  • The outermost pocket is conveniently passport-sized.
  • The bottom pocket is actually huge. I managed to get a pair of size 10 shoes in there (barely), though I think it would make more sense to store smaller or more flexible items in there, like a sweater.

As with all Tom Bihn compartments, each of these have internal attachment points for clipping all sorts of accessories to the bag, including any of their myriad organizational pouches, which include everything from drawstring stuff sacks to zippered organizers of all shapes and sizes:

Tom Bihn Synapse 25 with accessories
That packing cube is known as the Tri-Star Medium (they’re custom-sized for specific packs) and it fits perfectly in the main compartment.

This way you won’t accidentally donate a few of your belongings to whomever takes over your room after you leave. Like I did in Peru that one time. Shush.

The main chamber

This spans the full height and width of the pack, and thus can store quite a bit, and allows even more organization because of its divider panel, which is quite spacious (though if you’re not using it, you’ll occasionally have to shove it out of the way like an overly-friendly shower curtain).

Tom Bihn Synapse 25 main compartment
Lining fabrics use brighter colors to help with visibility.

Since the main compartment only occupies the space directly beneath the zipper, you only ever pack straight down, rather than diagonally. Many packs of this size often feature a single zipper to service the entire pack, making it more difficult to pack it to capacity, which is less of a problem here. It’s also sectioned off from the other compartments, meaning you can still make use of them, even when the main compartment is full (though of course overstuffing it will eventually intrude on their space).

And here we are at the other distinguishing feature…

The checkpoint friendly laptop sleeve

The laptop sleeve is hiding a few tricks, like how it can do this:

Tom Bihn Cache with Rails laptop sleeve system
Neato.

You know how you need to remove your laptop when going through airport security? Well, you’re allowed to leave your laptop in a padded sleeve, and set it on the conveyor belt to be scanned.

So Tom Bihn devised what they call the Cache with Rails system, which allows you to remove the laptop sleeve without detaching it from the bag, and then you just slide it back in after the scan. This is quite convenient for frequent air travelers, who need all the convenience they can get.

This actually has quite a few implications:

  • The attachment points that connect the sleeve to the bag also keep it centered and suspended when stored inside the pack, as opposed to the typical laptop backpack solution of providing an oversized padded sleeve to accommodate any and all size of laptop, which allows smaller ones to migrate all over the unnecessarily cavernous space, and bang against the edges.
  • Instead of using generic (and therefore overly gigantic) padded laptop compartments, Tom Bihn’s sleeves come in multiple sizes to fit specific laptops; this means they’re not included with the pack (and you’d need a different one if you switch to a bigger laptop), but it also means they’re completely removable, so you can lighten the load if you don’t need it, or you could use it elsewhere.
  • Since the sleeve is designed to slide in and out of the pack quite easily, but also fit a laptop quite snugly, you’ll often end up pulling the entire sleeve out of the pack along with the laptop. I didn’t find this to be a significant problem, as the laptop will slide right out once the sleeve gets to its furthest point, but it’s worth mentioning. You could also just hold the sleeve down while pulling just the laptop, but occasionally I found it more convenient to yank the whole thing out and then shove the sleeve back in.
  • I would say it’s a good idea to store long, wide, flat things in the main compartment, like a textbook or a packing cube, so the sleeve can slide in and out against a flat surface, thus maximizing the ease of insertion and removal when going through airport security, but you could also just set the pack down on its back (so the shoulder straps are on top), and then it’s even easier, and it won’t really matter what’s inside anyway. But it would still make things easier when removing it vertically.

Also, the sleeve folds shut, rather than using noisy velcro. Kind of a nice touch.

Another helpful detail is how the zipper for the main compartment is actually somewhat offset, rather than being directly above the laptop sleeve; this means that even if rain manages to get inside, it will then have to go diagonally to get anywhere near the laptop.

Speaking of rain, this is probably a good time to mention how this zipper is a water-resistant zipper. Actually, all the zippers are water-resistant zippers, because all zippers on all Tom Bihn packs are water-resistant zippers, because clearly that is the correct answer.

Hmm, that was quite a bit of detail. Oh well though. This system works so differently from typical laptop backpack compartments that I think it’s worth pointing out each and every distinction. It’s quite a useful feature for frequent travelers, but I actually think the greater advantage may be the unsung centralization and immobilization of the laptop, which will likely make carrying the pack even more comfortable.

Speaking of comfort, we haven’t even gotten to that yet. And comfort is also one of the Synapse’s best features.

Comfort factor

I am a scrawny weakling with the musculature of a malnourished 4th grader, and finding comfy backpacks is about as fun as riding a unicycle over a bed of nails.

I had heard plenty of people claim how comfortable they found the Synapse, but I’ve heard people claim all sorts of nonsense about all sorts of things, so it wasn’t until I tried one out that I was able to evaluate this. Luckily for me, they were correct. For a few very specific reasons:

1) No neck gouging

I have absolutely no idea why this is a problem that continues to occur in the 21st century, even among thoroughly reputable companies whom I otherwise respect, especially since all it takes to test this out is trying the damn thing on.

The problem that so often occurs is that the shoulder straps are placed so close together that when you’re wearing the pack, the straps gouge into your neck from the sides. They often overlap past the fabric of a t-shirt, scraping directly against your skin and annoying the hell out of you.

The Synapse does not have this problem at all:

Tom Bihn Synapse 25 shoulder strap placement
I don’t know how this picture turned out so badly. It’s grainier than a wheat field.

I have absolutely no idea why this is such a rare feature, because it’s just objectively terrible to do it any other way.

And although widening the space between the shoulder straps can eventually become a problem for smaller people, I’m pretty small, and I didn’t have much of an issue with this. I’ve simply been making frequent use of the sternum strap, though it was not absolutely necessary to do so. You’d have to be really tiny for this to be a problem, and it can be solved with the sternum strap anyway.

2) Lumbar support

This is also an objectively correct design decision, but one which I have literally never seen before in the entirety of my existence. The backrest actually curves at the lower back, to match the curvature of a human spine. You know, because it’s designed for humans, like all packs should be?

Tom Bihn Synapse 25 lumbar pad
Curvy.

I have no idea why nobody else does this, because it’s just objectively correct. Other companies will often put extra padding on the backrest to make it more comfortable, but you can reduce the amount of padding necessary for comfort by simply shaping the backrest properly to begin with.

Besides, it’s not like gravity is pulling horizontally, so there’s a point at which additional padding would become objectively useless, whereas proper curvature would transfer the weight from the shoulders to the hips, which is exactly what you’d want the pack to do. Obviously a cheap bag with no structure will allow you to pack in such a way that it achieves this curvature as well, but of course a cheap bag with no structure will have its own problems.

As you might expect, you can maximize the curvature by storing big, bulky, soft things in that spot, like a sweater. In the photo above, there’s a packing cube full of clothing in that spot, which is flexible enough to conform to the curvy lumbar shape quite nicely. Textbooks will obviously ruin it, though stuffing a sweater underneath will fix it. I wouldn’t worry too much about it for short trips, though.

The padded laptop sleeve is also suspended high enough that I think you’d need maybe a 15″ laptop for it to interfere significantly with this curve, in which case it will simply be slightly less curved, and still work fine.

And let’s not forget the other distinction that makes this pack vastly more comfortable than others of this type:

3) The water bottle pocket is centered!

As mentioned earlier, this makes a huge difference in comfort, as it distributes the weight more evenly across your shoulders, rather than dragging you down along one side. I find this to be exceptionally helpful, especially if you’re carrying a heavier-than-average water bottle filled up completely. And if not, it’s still useful for compartmentalization anyway.

4) It has plenty of comfy strap options

The Synapse includes a sternum strap and a waist strap, both of which are removable, and leave behind only fabric, rather than buckles, and slip right back on when you want them again.

Tom Bihn Synapse 25 back panel and straps
There’s also a hydration tube clip on the left shoulder strap, just below the sternum strap.

As a scrawny weakling, I make frequent use of both, and I found the waist strap to make a huge difference in comfort, even though it’s just a simple strap. I have no idea how people can possibly live without one. Probably muscles.

On a minor note, the dangly ends of the sternum and waist strap can tuck away into their own attachment points, which worked out quite nicely. Larger people will wear them more loosely, so they might not be able to do this, but then again, the dangly ends will be significantly shorter on larger people, so there’ll be less dangling anyway.

4) A little on breathability

As far as I’m concerned, the only breathable pack is no pack, because I get absurdly overheated no matter what I’m doing. I remember once unclipping a pack on a Bulgarian hilltop and waving my shirt in the wind like a surrender flag in an attempt to dry it out. On a cold day.

From then on I had sworn to use nothing but backpacks with trampoline-style suspended mesh back panels, or messenger bags. These have their own downsides, but at least I wouldn’t look like I had just climbed out of a pool.

That said, the mesh used in the back panel on the Synapse is the good kind, as opposed to spongy mesh that squishes flat and compresses its air channels down to nothing, and it was significantly more breathable than several other packs I’ve used, and far less of a problem than I’d expect from non-trampoline back panels.

But I also found myself getting into the habit of just carrying it over one shoulder for a while to cool off, which would be somewhat awkward on larger packs with padded hip belts. It’s light enough, even when full, that it’s easy to walk like this for a while before going back to normal, and it’s nice to give your shoulders some variety anyway.

So, all in all, I found the Synapse to be far more comfortable than I’d expect from a “normal” pack like this, and better than the last few hiking packs I’ve tried, due to the centralized water bottle compartment, the curvy lower back panel, and non-gougy shoulder straps, and my unease over the non-trampoline back panel and non-padded hip strap worked out just fine. Life is grand.

Any caveats?

Maybe. The layout is so different that it’s worth taking a few things into consideration:

  • The water bottle pocket places a heavy object high up in the pack, meaning it can sometimes flop over if you unzip the main compartment all the way. Also, if the lower compartment is empty, the water bottle pocket will squish it when placed on the ground, so be aware of this when setting it down on the ground, so it won’t fall over. Also, since it’s designed to accommodate large or small bottles, a skinny bottle might lean diagonally, rather than stay perfectly upright; this can be fixed by using the side pockets, or just sticking an umbrella inside the central pocket, or just not caring.
  • The compartmentalization is incredibly helpful in staying organized, but also means that if you intend to pack it to its full capacity, you’ll need to play Tetris and arrange items according to which pockets they can fit most efficiently into, rather than shoving everything into one giant compartment. I find the organizational advantage to be extremely helpful, but filling it to capacity will take some experimentation.
  • It has no external mesh pockets, nor any compression straps, which means there aren’t many options for lashing things to the outside, though the large grab handle and bike light strap help. You can make up for the lack of compression with clever compartmentalization, and remember that it’s bigger than you might expect.
  • As mentioned, grabbing the laptop sometimes brings the sleeve right along with it, so you’ll need to get used to holding the sleeve down while pulling up on the laptop.

But all in all, these are caveats, rather than real problems.

Thus:

…so is this the best laptop backpack around?

I’d have a hard time conceiving of something that would pose a challenge to the features of the Synapse, especially for certain uses. The centrally located and zip-shut water bottle pocket is such a useful feature that I can’t imagine ever doing without it (especially when using filtration bottles, whose extra weight and importance are well accommodated), and its placement defines the rest of the layout, which offers rather unsurpassed organizational efficiency. The shoulder straps and lumbar support offer better comfort than I got from certain packs from reputable outdoor companies, and the travel-friendly laptop sleeve removal is great for those on the road. Add to that the professional appearance and expert craftsmanship, and you’ve got yourself a great pack.

But let’s get into even dorkier detail:

Is it the best laptop backpack for travel?

Though I would expect it to excel in all sorts of situations, I think the Synapse is especially suited to life on the road, where easy access, rain resistance, checkpoint-friendly features, dimensions within carry-on limits, balanced water bottle placement, and an utterly normal appearance become especially helpful. You can even lock the zippers on the main compartment, which has a larger-than-average zipper that can handle a cable lock, without being a “real” locking zipper. I would expect finding a better laptop backpack for frequent travelers would be a cartoonish challenge.

You could easily use a Synapse 25 as your only backpack, particularly on weekend trips and other short excursions (or even indefinite ultralight travel, if you’re really disciplined), though I would expect that for longer trips, most people would prefer to use it as a daypack alongside something else, which would work quite nicely. The non-fussy exterior also has a nice, clean, professional appearance, instead of extraneous straps, snaggy mesh, and fluorescent racing stripes.

Is it the best college backpack?

This is an interesting one, because I think the best feature of the Synapse actually becomes irrelevant on a college campus. If you have drinking fountains all over the place, you don’t need to worry about how to carry heavy water bottles that need to be properly balanced (unless those drinking fountains are icky, which maybe they are). And since you’re likely walking over relatively short distances (class to class, for example), compromising on comfort isn’t going to be such a big deal.

On the other hand, none of this is a drawback, since you can just make use of the compartmentalization for all sorts of other things anyway. I also expect most college kids would want a backpack that can be their only backpack, instead of buying one for books and something else for a hike, in which case the distinctive features of the Synapse will come in quite handy, making it a highly versatile long-term investment.

Is it the best EDC backpack?

You know what’s annoying? EDC means “everyday carry,” but if you look it up, you might also find that it means Electric Daisy Carnival. Which made a weird sort of sense, because if you’re going to a carnival, you’d probably want to carry a jacket or something. So that’s what I thought EDC meant for a while.

But anyway, EDC is an adorably hotly-debated topic, as it means completely different things for different people, and can include everything from wilderness survival gear to extra shoes for the kids, and thus can occasionally generate highly specialized requirements, in which case objectivity is a challenge.

I would say the strengths of the Synapse include the organizational efficiency, while the potential drawbacks include the lack of exterior lashing options, and how the compartmentalization excludes the possibility of hauling just one huge thing. So it’s worth evaluating those tradeoffs, but I would expect the setup would be an overall organizational benefit to most people, and it’s far more comfortable than oh-so-many other options I’ve tried.

Sizing options

As mentioned, this bag comes in 19 or 25 liter versions. I would say that if you’re planning on using the Synapse as just a daypack, intending to carry a laptop (up to 13″), sweater, rain jacket, water bottle, some food, a book, pens and pencils and so on, the 19 liter version will do just fine. If you want something for weekend getaways and road trips, in which case you’d also bring a few changes of clothes, maybe an extra pair of shoes, and some toiletries, you’ll probably want the 25.

Final thoughts!

As you can tell, I’m obviously a big fan. I’ve had my eye on this for a while, particularly due to the Sisyphean ordeal of finding small-to-medium backpacks that can accommodate larger-than-average water bottles without fear of them falling out, and I’m a big fan of the rest of the setup as well. It’s a cleverly designed, immaculately crafted pack, built with solid materials, and with quiet, understated class.

But I also wanted to highlight what makes the Synapse so distinctive. It’s not just good, but uniquely good, and I wanted to go into obsessive detail regarding each and every one of its distinguishing features, particularly for those who only want to buy something once. I think you’d have a hard time finding a new favorite after picking up one of these, despite the innumerable competitors clamoring for your attention.

So if that all sounds good, you can get one right here.

I’m planning on taking this as my one and only pack on an upcoming international trip, after which I’ll return with even more obsessive commentary. Stay tuned.

Update! I recently took this pack on a trip through Central America, and it worked out great. “Where’s your real bag?” is what people would say. As I expected, I enjoyed the easy-to-organize layout and the comfy straps, and it came out with not a single scratch on it. Quite a solid performer throughout, and all it took was hosing off all the dust in the shower to get it ready for its next adventure. Which will hopefully be soon!

Tom Bihn Synapse 25 in the wild
Me and my Synapse out in the wild.

As mentioned, this backpack, as well as all accompanying accessories, were provided for free for this review. But, as I’m sure you’ve come to expect by how frequently I complain about even the tiniest of imperfections, all statements here are thoroughly honest opinions.


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