Find Your Store
Home Page

Cart, contains 0 items

When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.
Expert Help
Earn Rewards

Peak Design
Travel 45L Backpack

4.817989417989418 out of 5 stars
945 Reviews



Travel 45L Backpack

The Peak Design Travel 45L Backpack functions as a day bag, carry-on, or checked bag for all of your travel needs. The backpacks default 35L configuration meets the maximum international carry-on standards so you can confidently fly. Or, if you need a little extra room, dual expansion zips offer an extra 10L and the durable face fabric and ultra-light foam padding keep your gear protected so you can check the bag with peace of mind. Conversely, compression snaps reduce the bag to 30L when you're out on a day trip while tons of internal and external pockets help you keep all of your gear organized throughout the duration of your travels, wherever they may be.


  • Versatile travel bag for overnighters or international trips
  • Adjustable from 30L day bag to 45L checked bag for versatility
  • Default 35L configuration meets international carry-on standards
  • Durable, water-resistant fabric sheds moisture in light showers
  • Oversized zippers are weather proof and lockable to protect gear
  • Ultra-light foam padding offers extra protection during travel
  • Dual side zippers allow quick access to contents of the backpack
  • Compatible with Peak Design accessories for maximum organization
  • Item #PKE0018
Responsible Collection
400d recycled nylon, polyester
30 - 45L
Backpack Carry
1 zippered dividing panel, front organization, 4 zippered mesh, 1 laptop compartment
21 x 15 x 5.75in
Claimed Weight
4lb 9oz
Manufacturer Warranty

Overall Rating

5 based on 945 ratings

Review Summary

1 Stars - 1 reviews
2 Stars - 2 reviews
3 Stars - 24 reviews
4 Stars - 114 reviews
5 Stars - 804 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


Selecting an option will reload the available reviews on the page
5 out of 5 stars

July 19, 2024

Great Travel Backpack

This backpack is loaded with features has plenty of room for multiple days of travel. I have had it fully packed and was able to easily fit it into the overhead compartment on multiple flights.

5 out of 5 stars

July 11, 2024

Très jolie et ultra pratique

J'ai acheté ce sac pour partir en roadtrip moto, c'est ultra pratique car il fonctionne comme une valise, mais plus simple à porter. Et les crochets pour l'attacher son un vrai plus. Mais au final avec toutes ces fermetures etc... cela en fait un sac très polyvalent. Si je devais donner un bémol, il s'agirait de la raideur du dossier. Bien pour quelques heures mais je ne me vois pas partir en randonnée avec...


Originally reviewed on Peak Design

4 out of 5 stars

July 10, 2024

Lots of features, protection and organisation

I have used it as a carry on for 4 years + whenever I need to haul loads of stuff. After 4 years of loading it, the main zipper did develop an issue but I got a replacement from the warranty right away. Definitely appreciate the weather resistance (never noticed any water getting inside) The big con is it's weight. So I wouldn't really recommend as day pack or backpacking trip. For my travels I brought a packable backpack inside. Would be perfect if they managed to reduce the weigh without sacrificing ruggedness


Originally reviewed on Peak Design

5 out of 5 stars

July 7, 2024

Great versatile travel backpack

I've put it through the wringer
Size Bought:
45 liter Rachel backpack

I bought this Peak Design travel backpack last year for a trip with multiple stops and then recently bought a second one for my daughter for an extended trip to Africa. The size works great for my daughter who is 4’11” and equally well for my husband who is 5’10”. The ability to change from 30 liters to 45 liters is great for easy carry-on and the hideaway strap system works well if you need to check in when fully expanded to 45 liters. highly recommend this travel backpack.

5 out of 5 stars

July 6, 2024

Changed the way I travel

Absolutely love this pack. Having only traveled with small backpacks in the past, I had no how much I could fit in a backpack. I know it's designed as a carryon but I've used it as my personal item on many domestic US flights with no problem. Just barely fits under airplane seats and has lots of room for packing both my tech and clothes. Combined with the PD packing cubes I've found myself not needing to bring an additional carryon suitcase on shorter trips.


Originally reviewed on Peak Design

5 out of 5 stars

June 24, 2024

Excellent quality & sturdiness

I bought this bag to have as a carry on item on my trip to Japan. When paired with the packing cubes (I got 2, 1 small, 1 medium) it really feels like you can pack a lot more for it's size, it felt abit like cheating. Of course, that meant that it ended up being much heavier than a carry on with all the compressed clothes, but the weight was manageable, especially with the hip belt. Additionally, because we visited a few cities I used it as a single travel bag. I really tested the capacity there, I was able to fit a laptop, small packing cube medium packing cube, wash pouch, tech pouch and shoe pouch, the bag looked bloated, & heavy, but it was impressive how much it could carry (with the extension open 45L). I have the sage, I had some concerns about the colour, but I ended liking it a lot. I found that rolling up the organizational separator was a huge deal. Having it on meant that I could organise a lot of smaller things and it was easier to pack an overshirt in the front compartment. While, when it was stowed away and especially when the bag was fully expanded, meant that i could carry difficult to fit items like boxes.The flexibility of having 3 different sizes in one, is not to be underrated, and sometimes I started the day with the smallest size and ended up expanding to fit gifts or extra clothes. I also found use for the outside straps, usually for jackets, typically items that take to much space inside the bag and that you would want to reach easily. From a design standpoint, everything was excellent. The only concern that I had was that packing bulky items on the front access, especially near the base meant that the magnets on the front bottom side that hold the straps and waterproof cover (wildfly) could not reach each other. In summary, really impressed with the quality, the fabric and the design. I started using as an everyday carry as well cause it is very convenient. But recently I've been thinking of getting a smaller 20L one, for more versatility.


Originally reviewed on Peak Design

5 out of 5 stars

June 20, 2024

Great Flexibility

Great product. Initially I thought it was a little big, but as I put the camera cubes in as well as other items it is great. With the addition of different cubes it is very flexible for travel. I have the 30 liter backpack it is fine for day use but tight for travel.


Originally reviewed on Peak Design

5 out of 5 stars

June 20, 2024

Great travel backpack

I bought this backpack to travel and it has everything I need. A ton of room in the main compartment, some quick organization and sturdy material. It about the same size as a carry-on suit case so there is no need to worry about airline make me check the bag. Overall, highly recommend this for backpack traveller


Originally reviewed on Peak Design

5 out of 5 stars

June 18, 2024

My go to carry on

This pack is industry best. Priced to match! Expensive but worth it. Not a whole day hiking bag. Heavy for what it is. But awesome for suitcase replacement

Casa de Ventanas

Originally reviewed on Peak Design

5 out of 5 stars

June 12, 2024

Amazing Versatile backpack

Love this bag for the design and flexibility. I needed something for travel and something that can also work well as a camera bag. After looking at a bunch of bags and reading a ton of reviews, this seemed to be the best option. The materials, aesthetic, and functionality are awesome. Their system makes it easy to go from travel to camera to half and half or anything in between. Definitely recommend this bag

NYC traveler

Originally reviewed on Peak Design