Peak Design 45L Travel Backpack
Peak Design 45L Travel Backpack

Peak Design 45L Travel Backpack review: One bag for photography and travel

Reviewing Peak Design's spacious yet stealthy backpack designed for general travel and outdoor / landscape photography

Peak Design's 45L Travel Backpack ($299) is a modular backpack designed for travelers and photographers. Out of the box, the bag can hold 35L of cargo (meeting international carry-on size requirements), but then expands to 45L to carry even more. There's a slot for laptops up to 16" in size, plus specially-designed cubes (sold separately) to carry loads of photo and video gear. The bag is smartly designed, aesthetically sharp, and packed full of unique design features.

Will the Peak Design 45L Travel Backpack be your next camera bag? Let's take a look and find out.

  • Modern, contemporary design
  • Quality materials and construction
  • Side flaps for storing shoulder and waist belts
  • Specially designed camera cubes (sold separately)
  • Airplane carry-on compatible, expandable to 45L
  • Shoulder and waist straps not comfortable enough for extended use
  • Non-adjustable harness
  • No rain cover included
Check current price: Peak Design 45L Travel Backpack
Disclaimer: Peak Design provided the backpack and storage cubes for this review. All opinions are my own.

45L Travel Backpack general overview

Peak Design 45L Travel Backpack
Peak Design 45L Travel Backpack

Introduced through a crowdfunding campaign back in 2018, the 45L Travel Backpack is part of Peak Design's "Travel Bag" line which includes a smaller 30L sibling, a larger 65L "duffelpack" (hybrid duffel and backpack), a traditional duffel, and a small collapsable tote. All bags have the same, distinctive Peak aesthetic: sleek, sharp, and thoughtfully designed.

The 45L Travel Backpack is primarily designed guessed it: travel. A rugged, expandable bag made for weekend getaways, vacations, and extended trips. The right bag for those who need to carry more stuff than what an everyday backpack can hold, but aren't going to go mountaineering or hike for long periods of time (the bag may be a bit large and bulky for the former, but also not quite customizable or comfortable enough for the latter).

Nylon material in the 45L Travel Backpack
Nylon material in the 45L Travel Backpack

The outside of the bag is made of 100% recycled, water-resistant 400D nylon canvas, plus thicker 900D nylon canvas on the bottom. The 900D nylon is more water resistant and helps keep the bag dry when placed on damp ground.

The 45L Travel Backpack has three straps: shoulder, waist and sternum. The sternum strap is adjustable, with four positions to accommodate different torso lengths (I'm tall, so I moved the sternum strap to its lowest position). The waist and shoulder straps are not height adjustable. When not in use, both the shoulder straps and waist belt may be tucked underneath clever, magnetized side flaps  (pictured above) to clean up the bag's exterior appearance.

At the time of this review, the 45L size is sold in two colors: black and sage. Normally I prefer monochromatic gear, but was pleasantly surprised by sage (looks like soft heather gray with a touch of green). Sage elevates the pack's aesthetic and makes the bag look more premium and unique. I like it!

Travel Backpack Laptop Sleeve
Travel Backpack Laptop Sleeve

Inside the bag is a spacious cavity for all types of gear, various zippered pouches for small items, plus a velcro-enclosed laptop sleeve. The sleeve is just as wide and deep as the pack itself and provides plenty of space for 16" laptops or smaller.

Design details

As a brand, Peak Design is known for smart and clever design ideas in all their products, and the 45L Travel Backpack is no exception. Throughout the bag are small details that collectively add-up to provide a unique, thoughtful user experience. Here are a few of the details I noticed.

Hidden side pocket in Travel Backpack

Peak Design added a small, barely noticeable pouch (pictured above) to one side of the bag's back. It's super thin and small; perfectly sized for a business card, cash, passport, or (my favorite use) an Apple AirTag to keep tabs on the bag in case I leave it behind somewhere or someone runs off with it.

Side handle on the 45L Travel Backpack

Discrete handles are on the left, right, bottom and back (pictured above). These handles are more secure and comfortable when carrying the bag one-handed instead of carrying it using the shoulder straps.

Side pockets

The stretchable pockets on the left and right side of the backpack (pictured above) are taller than other camera backpacks I've used. The extra height helps better secure items like large water bottles and compact tripods.

Straps in lower flap
Straps in lower flap

For taller items in the side pockets there are two removable straps inside the lower flap. These may be unhooked from inside the bag and moved to exterior loops to help tighten down tall tripods or mount items to the front of the bag. (Note: this is an update to my video review where I said the bag could use straps. Turns out they do exist.)

Carry-on compatibility

The standard, FAA size for carry-on luggage when flying in the United States is 22" x 14" x 9". The Peak Design 45L Travel Backpack sits right on this line, with external dimensions measuring 22" x 13" x 9.5" (56cm x 33cm x 24cm).

As for capacity, 45L is the maximum carry-on size allowed on most airlines in the United States. International and budget airlines tend to be more stringent, limiting capacity to 40L or less. 35L would be acceptable with any airline, anywhere.

As mentioned earlier in the overview, the 45L Travel Backpack has a standard capacity of 35L, so it's actually a little smaller than its name may indicate. It's only when expanding the bag using a front zipper that capacity increases to 45L. This means the bag would be perfectly fine when used as a carry-on at its standard size, and could then be expanded for more room when arriving at your destination if need be.

Collapsing travel backpack to 30L

Also worth noting, the 45L Travel Backpack can also be compressed to a smaller, 30L size (as pictured above) for easier transport when not carrying as much gear. Simply squeeze the top of the bag for a slimmer, sleeker profile.

Filling the pack with camera gear

As mentioned earlier, carrying photo and video gear in the 45L Travel Backpack requires additional Peak Design camera cubes that must be purchased separately. Cubes are available in small ($50) medium ($70) and large ($90) sizes. This increases the overall price of the backpack for photographers and videographers, but makes the experience of packing and carrying camera gear dramatically better.

Peak Design camera cubes and gear in 45L Travel Backpack
Peak Design camera cubes and gear in 45L Travel Backpack

The 45L Travel Backpack can hold three small cubes, one small and one medium cube, or one large cube. The medium cube is basically two small cubes, while the large is three. Each cube is designed to fit snug inside, with additional loops and small carabiner-like clips that secure the cubes to the bag's interior prevents them from accidentally falling out.

Peak Design camera cube clips
Peak Design camera cube clips

Inside each cube are padded velcro dividers that may be repositioned to accommodate a variety of gear layouts and configurations. There's also a small, handy velcro pouch with a zipper enclosure for fiddly things like SD cards, wipes, clothes, etc.

Also of interest, the medium and large cubes have zippered openings on both sides. Once opened and with the flaps tucked under, a photographer may open the side of the backpack and access their camera without taking the pack off. This could be handy when shooting handheld while hiking.

Cubes may also be flipped around and clipped in the opposite direction (from their standard back-loading orientation) to access gear through the front of the bag. The front doesn't open as fully as the back, but works fine for those who'd rather access their gear through the front.

Side opening on the 45L Travel Backpack

Each cube also has exterior handles and loops for attaching camera straps (like Peak Design's excellent Slide straps); making it possible to carry the cubes as shoulder bags.

All together, its the modularity of the 45L Travel Backpack and cubes that make the Peak Design system an intriguing option. Photographers can load up the bag with cubes and gear when flying, then remove one or more cubes when reaching their destination. This would be especially helpful when hiking, for a collection of gear could be broken down to just the essentials, with room leftover for a jacket, food, or whatever else. It also gives unpacked gear a secure place to live when not in use.

This is different from the experience of using a dedicated camera bag (like this excellent model I reviewed from Manfrotto), for with the latter, all gear and velcro dividers must be removed when using the bag for other purposes. They are more work to organize and customize, unlike cubes which may be quickly added and removed as needed.


Shoulder strap on the 45L Travel Backpack

Peak Design designed the 45L Travel Backpack to look cleaner and more polished than most hiking and camping backpacks. This is great for photographers who want to own and use a single bag for all uses cases and environments.

The shoulder and waist straps are constructed using thin, high-density foam. Both straps are perfectly comfortable for light and moderate hikes, but for me are too thin for extended hikes. I also would have preferred some control over where the shoulder straps mounted to the bag (to more comfortably accommodate longer torsos like mine).

Waist belt clasp

The sternum and waist straps use unconventional metal hooks instead of the standard clasps used by other bags. The waist belt hook slides into a black strip of nylon, while the sternum strep connects to one of four "pockets" stitched into the shoulder strap. Of note, the sternum strap isn't stitched into the bag, so it can be removed (intentionally or accidentally).

For me, the waist band takes some getting used to. Though it does the job of redistributing weight from the shoulders to the hips, it feels a bit thin for my taste. I wish the waist strap was thicker and more substantive, but I also recognize that that change would detract from the bag's aesthetic.

Photographers who don't hike long distances or wear packs for extended periods of time shouldn't miss having thicker straps or a more sophisticated, customizable harness. But for photographers who wear backpacks longer in more physically demanding, strenuous environments, a different brand of outdoor camera bag may be better suited.


Overall, the 45L Travel Backpack is a thoughtfully designed bag, but there are a few limitations and particular use cases where the bag may not be the best fit for everyone.

The 45L Travel Backpack does not come with an integrated rain cover. The nylon exterior of the bag and zippers are water resistant, but not completely waterproof. This means some moisture could still get inside the bag, and some photographers would likely prefer keeping the bag itself dry (especially when caught in a downpour). For those who want true protection from the elements, a separate RainFly ($30) cover must be purchased. I wasn't able to test the cover, but it appears to integrate nicely into the magnetized front-flap compartment.

Finally, the 45L Travel Backpack provides few options for additional customization and modification of its exterior. It has a few carabiner loops for hanging things, but there are no additional mounts or slots for attaching straps or other accessories. Photographers who like to customize their bag exterior with additional pouches, straps and accessories may be better served by a more traditional outdoor backpack.

Wrapping it up

Overall, the 45L Travel Backpack from Peak Design fills a niche in the large marketplace of photographer bags and backpacks. It has most of the features of a backcountry, wilderness backpack but with a more refined, streamlined design that wouldn't look out of place in urban environments.

Hiking with the Peak Design 45L Travel Backpack
Hiking with the Peak Design 45L Travel Backpack

The camera cubes are clever, for a traveling photographer or videographer may use them configure their own gear layouts for different scenarios, whether that means filling up the bag with gear when used as an airplane carry-on, or modifying their setup later on the ground. The modularity and flexibility is fantastic.

Finally, for readers unfamiliar with the company, it's worth mentioning that Peak Design is one of the most serious companies about lowering the environmental impact of what they manufacture. So much so in fact they founded their own non-profit for other companies to follow. Peak Design is also fair trade certified, with standards for their workers and manufacturing facilities. Finally, all their products (including the 45L Travel Backpack) are guaranteed for life, so the company will help you out if ever there is ever a defect.

Check current price

At the time of this review, the 45L Travel Backpack retails for $299 in the United States, but prices can and will change, so click the button below to check the current price of the bag through reputable online retailers (including Peak Design itself). To their credit, Peak Design also maintains a used marketplace for the 45L Travel Backpack and other products, for those looking to re-use gear and save money!

Video review

Here's the video version of this review.

Peak Design 45L Travel Backpack Review video