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Peak Design 40L 2-in-1 Travel Backpack Black

SKU: PDBTRT40BK2 MFR: BTRT-40-BK-2
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Key Features

  • Experience durable protection with weatherproof 330D nylon, ensuring your gear stays safe in various conditions.
  • Enjoy a comfortable fit with adjustable straps and an optional hip belt, perfect for extended travel or daily commutes.
  • Benefit from ample storage with up to 40L capacity, including versatile compartments for all your essentials.
  • Discover a stylish design available in a range of colors, offering both functionality and aesthetic appeal for any adventure.
  • Stay prepared with weather-resistant materials, featuring PFAS-free DWR for enhanced water resistance and peace of mind.
  • Invest in great value with a 2-in-1 travel backpack system that adapts to your packing and carrying needs.
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Reviews about this item

Review Summary

2026-06-16T20:00:00

Rated 5 out of 5

Durable with great features and tons of space

I bought this from the kickstarter campaign during pre launch to use in conjunction with my 45L travel backpack. I used the new 2 in 1 40L travel pack and it is more convenient now to deploy the smaller day pack instead of having to pack an additional day pack on top of my carry on and personal item. The new straps are padded and you can now tuck the straps inside with out them falling out the sides like the previous bag. You can also disconnect them . The straps are way more comfortable since they have better padding.

Kevin

2026-06-12T20:00:00

Rated 5 out of 5

Amazing bag.

I have a number of Peak Design bags, and this is the best one I've found for my EDC. I've used it on two trips since getting it and it's been perfect for my business trips. The 2-in-1 is great for organization and for convenience. Recommend for anyone who wants simple travel.

RDT

2026-06-12T20:00:00

Rated 3 out of 5

I want to love it, but it's not perfect.

So, I know giving things less than 5 stars can be seen as a terrible review to most people, so I'd like to preface this that this is three stars for me, and your individual results may vary. When I ordered this on kickstarter, I was looking for a bag that could do everything. I needed it to be big enough to carry my work boots, work clothes, water bottles coffee, etc, but also be able to carry my laptop, tablet, and camera when I travel. I currently have a backpack from a different company that can do that, but I wanted something... better. When Peak Design came out with this 2-in-1, I thought it was what I had been looking for; big enough to take all my things with me, but able to separate, so I could carry around my smaller items when I got to my destination. For me, this backpack doesn't fit the bill. Can it store everything I need it to? Absolutely, but I feel it's a bit clunky. My previous backpack had very intuitive interior pockets I could put my airpods, my wallet, and computer peripherals. The 2-in-1 has a lot of the same pockets, but because the backpack is essentially split in two, they're in different pockets that I fund cumbersome to sort through. This backpack is also very large and doesn't like to be "squished" into tight spaces. It's high quality, and I appreciate that, but when I get to work I can't stuff it into a corner of my desk like I'm used to. It has to kind of... lay out there like luggage. Finally, one of the main reasons I got this was to be able to pack my camera gear, in the PD camera cube, along with me when I travel. Then my hope was that I could transfer just my camera and a single lens for day journeys. Well, the smaller backpack is like, really small. I will say I haven't tried to stuff my larger camera in it, but it looks like it's going to be a struggle. If you're reading this and think that this is written by a prima donna, that's fair. This may really be the perfect backpack for some other people, but for me I fear that it's going to be another in the long line of bags that sit unused in my office while I wait for something perfect.

Alex

Peak Design 40L 2-in-1 Travel Backpack Specifications

  • Available Colors

    Sage, Stone

  • Packing/Camera Cube Compatibility

    Base Pack: Fits up to a Large Camera Cube or Packing Cube (possible to stack Packing Cubes if they're not fully stuffed)
    Daypack: Best suited for small PD pouches and XS/XXS Ultralight Packing Cubes

  • Capacity

    Total: 2440.95 cu.in (40L)
    Base Pack: 2074.81 cu. in (34L)
    Daypack: 976.38 cu.in (16L)

  • Laptop/Tablet Capacity

    Base Pack: Fits up to 16" (40.64cm) MacBook Pro + iPad Pro 13" (33.02cm)
    Daypack: Fits up to 16" (40.64cm) MacBook Pro

  • Peak Design Tripod Carry

    Base Pack: Fits up to a Pro Tall tripod in side water bottle pocket
    Day Pack: Not optimized for PD Travel Tripod carry

  • Materials and Sustainability

    Weatherproof solution-dyed 330D nylon Versa Shell external fabric
    Weatherproof 900D bottom liner
    High-visibility solution-dyed 150D recycled polyester interior liner
    PD UltraZip access points,YKK bag connection zip
    Water bottle pockets are 70D UHMWPE span for enhanced durability
    PFAS-free DWR for enhanced water resistance with a lower energy/chemical impact

  • Materials and Sustainability (Contd.)

    Shell, liner, and stretch fabrics are Bluesign approved
    Fair Trade Certified
    Climate Label Certified

  • Dimensions

    Bags Connected (External): 21.85 x 13 x 8.3" (55.5 x 33 x 21cm)
    Base pack (External): 21.85 x 13 x 5.5" (55.5 x 33 x 14cm)
    Daypack (External): 19.7 x 13 x 2.8" (50 x 33 x 7cm)

  • Weight

    Bags Connected: 5.4 lbs (2.45kg)
    Base Pack: 3.7 lbs (1.68kg)
    Daypack: 1.5 lbs (710g)

  • UPC Codes

    Stone: 850075812585 | Sage: 850075812578 | Black: 850075812561

About Peak Design 40L 2-in-1 Travel Backpack

Simply put, the Peak Design Travel 2-in-1 is the ultimate one-bag-travel solution: Enjoy the nimbleness of one-bagging without the aesthetic and functional compromises that plague traditional hybrid packs. This masterpiece of form and function gives you two brilliantly capable bags that are just as useful and beautiful when they are apart as they are together. The 34L base pack and 16L zip-off daypack create a modular setup that adapts to any trip. Carry them together as a 40L max-size international carry-on, or separate them for lighter days on the go.

The base pack features a wide-open volume perfectly suited for Peak Design Packing and Camera Cubes, protected laptop/tablet sleeves, and an extra-comfy, quickly stowable padded shoulder and waist harness. The daypack offers on-the-go utility with a quick-access organizational pocket (glasses, keys, passport, etc.) and an additional protected laptop sleeve. Both bags feature Cord Hook external carry loops, large pockets for water bottles and quick-access storage, and luggage pass-throughs for roller-top carry when you need it. Built from weatherproof Versa Shell 330D nylon canvas with a rugged 900D bottom liner, this system looks sleek, carries comfortably, and handles the toughest conditions your journey might throw at you. Durable, adaptable, and unreasonably handsome-it's everything you need, nothing you don't.

Smarter Access And Organization
Dual entry points via a burly #10 UltraZip and top quick-access pocket give complete visibility without unpacking. Internal cube clip-in points keep Packing and Camera Cubes perfectly secured.

Comfort That Goes The Distance
Axial shoulder straps, a padded removable hip belt, and structured foam backing balance heavy loads naturally, so 40+ liters never feel like it.

System-Wide Integration
Designed to work seamlessly with Peak Design Packing Cubes, Pouches, and Camera Cubes-turning a single bag into an entire modular travel ecosystem. The only 2-in-1 travel pack with Camera Cube integration for photographers.

Engineered For Longevity
Built from 100% recycled weatherproof Versa Shell 330D nylon canvas with a reinforced 900 D waterproof base, abrasion-resistant UltraZips, and a lifetime guarantee-durability that keeps its shape and polish for years of travel.

Features

Base Pack:
• 34L of wide-open storage, ideal for Peak Design Packing and Camera Cubes
• Layer of ultralight padded foam throughout shell protects internal contents
• Clip-in points for securing Peak Design Camera Cubes
• Huge rear access via #10 UltraZips for easy packing/unpacking
• Quick-access external front zip pocket for keys, phone, glasses, etc
• Internal zip stretch pocket for securing cash and travel docs
• 360-degree grab handles for easy maneuvering
• Dual external stretch pockets for water bottles & quick-access storage
• Ultra-comfy padded shoulder straps + hip belt with a new three layer foam layup
• Magnetic strap keepers prevent straps from dangling when not in use
• Detachable/stowable sternum strap
• Straps stow in rear panel for easy checking
• Hip belt has storage pocket, Capture attachment point, and is quickly removable
• Axial shoulder strap attachments provide all-day comfort for all body types
• Luggage pass-through for roller-top carry
• Luggage tag attachment loop (tag sold separately)

Daypack:
• 16L storage (when separated) for on-the-go carry
• Rear access via #8 UltraZips
• Ultra-comfy padded shoulder straps with a new three layer foam layup
• Detachable sternum strap
• Quick-access external front zip pocket for keys, phone, glasses, etc
• Dual external stretch pockets for water bottles & quick-access storage
• Internal zip stretch pocket for securing cash and travel docs
• Luggage pass-through for roller-top carry

Peak Design 40L 2-in-1 Travel Backpack Features

  • International carry-on compatible when together or apart
  • Carry packs together as one, or separate into a carry-on and a personal item / Daypack
  • Burly YKK connection zip with Clarino touchpoints to join/remove the packs in seconds
  • Aesthetically clean in any configuration
  • All access zips have theft deterrence functionality
  • Hidden AirTag /tracker pockets in both bags
  • Weatherproof Versa Shell construction
  • High-visibility interior liner
  • Fair Trade Certified
  • Compatible with Outdoor Rainfly 45L

Key Features

  • Experience durable protection with weatherproof 330D nylon, ensuring your gear stays safe in various conditions.
  • Enjoy a comfortable fit with adjustable straps and an optional hip belt, perfect for extended travel or daily commutes.
  • Benefit from ample storage with up to 40L capacity, including versatile compartments for all your essentials.
  • Discover a stylish design available in a range of colors, offering both functionality and aesthetic appeal for any adventure.
  • Stay prepared with weather-resistant materials, featuring PFAS-free DWR for enhanced water resistance and peace of mind.
  • Invest in great value with a 2-in-1 travel backpack system that adapts to your packing and carrying needs.

What's in the box:

  • Peak Design 40L 2-in-1 Travel Backpack (Base Pack + Daypack Attached)
  • Base Pack Sternum Strap
  • Daypack Sternum Strap
  • 2x Cord Hook External Carry Straps
  • Hip Belt for Base Pack
  • Peak Design Lifetime Limited Warranty