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Peak Design · Review

Peak Design Travel Backpack 45L Review

An honest, research-based look at the Peak Design Travel Backpack 45L: what it does well, where it falls short, and who should actually buy it.

Peak Design Travel Backpack 45L

Peak Design

Peak Design Travel Backpack 45L

  • Expands from 35L to 45L via external compression straps
  • Weatherproof 400D recycled nylon canvas shell
  • Rear, top, and side access with MagLatch closures
  • Tuck-away hip belt and sternum strap
  • Compatible with Peak Design packing cubes and camera cubes
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Our verdict

The Peak Design Travel Backpack 45L is a solid option in its class with clear strengths and a few honest tradeoffs. It suits buyers whose priorities match its strengths above; if your needs differ, the alternatives below are worth a look.

An honest, research-based look at the Peak Design Travel Backpack 45L: what it does well, where it falls short, and who should actually buy it.

The trade-offs

Strengths & limitations

Pros

  • Compresses to a smaller, stricter-sizer-friendly footprint when needed
  • Three separate access points make it easy to grab items without unpacking
  • Weatherproof shell holds up in rain at bus stops and gate walks

Cons

  • Tuck-away straps take a bit of practice to stow cleanly
  • Heavier than the Osprey Farpoint 40 when fully packed
Fit check

Who should buy it?

A good fit if you…

  • Consider alternatives if: you don't need expansion or camera gear compatibility (Osprey Farpoint 40), or you want a suitcase-style opening at a lower price (Cot

Look elsewhere if you…

  • Buyers who need a different feature set, check the alternatives below.

What You Are Buying

The Peak Design Travel Backpack 45L is a single-piece, expandable travel backpack with a 400D recycled nylon canvas shell.

The defining feature is the compression system: external straps on both sides cinch the pack down for a smaller footprint or loosen for the full 45L capacity.

Access comes from three points, a rear panel (useful when the bag is worn, since it opens away from your back), a top opening, and a side zip that reaches a dedicated laptop sleeve without opening the main compartment.

Performance

Compression range test: Compressed fully, the bag's profile shrinks close to a 35L equivalent, useful against stricter gate sizers.

Expanded, the additional volume is genuinely usable rather than just a marketing number, fitting a folded jacket and an extra pair of shoes that didn't fit compressed.

Side laptop access: The side zip reaches the laptop sleeve directly, useful at airport security where laptops often need to come out separately, without unpacking the main compartment.

Camera cube compatibility: Peak Design's separate camera cube insert (sold apart from the bag) slides into the main compartment cleanly and holds a mirrorless body plus two to three lenses with padded dividers.

What It Does Well

The rear-access panel is a genuinely useful detail that's easy to overlook until you've used it.

Opening the pack from the side that faces away from your back means you can lay it down and grab items without exposing the back panel to wet ground or a dirty floor.

The compression system works as advertised, and cinching down for a strict sizer, then expanding once through security or once checked, is fast enough not to be annoying.

Camera and packing cube compatibility genuinely sets this bag apart for photographers, who otherwise have to carry a separate camera bag alongside a travel pack.

What Falls Short

The canvas shell and compression hardware add empty weight versus lighter-shell competitors, noticeable on a long carrying day even before packing anything.

The MagLatch closures and multiple compression straps take a few uses to operate quickly and cleanly, more fiddly than a simple single-zip main compartment.

Who Should Buy It

Consider alternatives if: you don't need expansion or camera gear compatibility (Osprey Farpoint 40), or you want a suitcase-style opening at a lower price (Cotopaxi Allpa 35L or 42L).

See Also

Peak Design Travel Backpack 45L vs Cotopaxi Allpa 35L, head-to-head comparison Best Travel Backpacks for Digital Nomads, full category Osprey Farpoint 40 Review, the budget-friendlier alternative

Peak Design Travel Backpack 45L

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Answers

Frequently asked questions

How does the Peak Design Travel Backpack expand from 35L to 45L?

External compression straps on the sides cinch the bag down to a smaller, more carry-on-friendly footprint, or loosen to allow the bag's structure to expand outward for the full 45L. The core dimensions of the shell don't change, only how much the sides are cinched in, so the compressed size is what matters for a strict gate sizer.

Is the Peak Design Travel Backpack good for carrying camera gear?

Yes, it's one of the more popular travel backpacks among photographers specifically because it's compatible with Peak Design's separate camera cube inserts, which slide into the main compartment and provide padded camera and lens dividers without needing a dedicated camera backpack alongside it.

Does the weatherproof shell mean it's fully waterproof?

The 400D recycled nylon canvas shell is weatherproof, meaning it resists light rain and splashes reasonably well, but it is not a fully submersible or waterproof bag. Zippers are water-resistant but not sealed, so heavy sustained rain will eventually find its way to the zipper lines.

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