Zulu 45L Backpack
Size:
Quantity
Only 2 In stock
Why We Like The Gregory Zulu 45L Backpack
Built for overnight backpacking trips, Gregory's Zulu 45L Backpack puts comfort forward. The ventilated back panel creates open space that aerates our back and lets heat escape while the FreeFloat suspension flexes with our body for a comfortable, body-hugging fit that's designed to prevent chafing. We like the large U-Zip opening for easy access to our gear and also like all the external pockets that Gregory packed into the Zulu—the extra-large zippered hip belt pockets, front stretch-mesh pocket, dual mesh side pockets, and top zippered pocket on the floating lid. That gives us plenty of places to stuff our gear for an overnight backpacking trip to our favorite forest, mountain, or park. The 45-liter pack can carry up to 40 pounds, but it's best for overnight trips with less gear to pack.
Details
- Feature-rich backpack for overnighters
- High-denier fabrics add durability and abrasion-resistance
- Adjustable torso provides 3.5in of adjustability
- Shoulder harnesses are perforated to maximize airflow and comfort
- Alloy steel frame secures load and shifts weight to hips
- AeroSpan ventilated suspension keeps us cooler and drier
- Hydration sleeve with SpeedClip hydration hanger
- Dual-layer bottom panel for added durability
- Item #GREZ09C
- Responsible Collection
- Recycled/Repurposed
- Material
- [face fabric] 400D recycled polyester, PFC-free DWR, [bottom] 420D nylon, PFC-free DWR, [lining] 135D recycled polyester
- Volume
- [S/M] 43L (2624cu in), [M/L] 45L (2746cu in)
- Support/Suspension
- Perimeter wire, FreeFloat
- Shoulder Straps
- yes
- Waist Belt
- yes
- Hydration Compatible
- yes
- Reservoir Included
- no
- Access
- Top, Front Panel
- Pockets
- 2 zippered hipbelt, 1 top, 2 stretch side, 1 stretch front
- Ice Axe Carry
- yes
- Trekking Pole Carry
- yes
- Sleeping Bag Compartment
- none
- Rain Cover
- none
- Weight Capacity
- 40lb
- Dimensions
- [S/M] 25 x 12.75 x 12.5in
- Claimed Weight
- [S/M] 3lb 7.2oz, [M/L] 3lb 11.2oz
- Activity
- backpacking
- Manufacturer Warranty
- lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
4 based on 17 ratings
Review Summary
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.Customer Images
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Selecting an option will reload the available reviews on the pageOctober 2, 2025
Brand for life
[This review was collected as part of a promotion.] I’m 6’1” and 175 lbs, and this pack fits me great. I really like that I can access it from the bottom, and the multiple pockets make it easy to grab things while it’s still on my back. It’s super sturdy, and the airflow design is a game changer. When I start to sweat, it doesn’t trap heat. The stiffness is actually a plus for travel, and it even works as a solid pillow for a mid-day nap. It’s also held up really well. I toss it in and out of my truck constantly and haven’t had any issues.
Originally reviewed on Gregory
September 17, 2025
loud, few straps to attach gear
- Familiarity:
- I've used it once or twice and have initial impressions
- Size Bought:
- M
- Height:
- 6' 2"
- Weight:
- 150
The pack is comfortable but it's sorely missing straps and loops to attach gear like a closed cell foam sleeping pad or a pair of snowshoes. Even worse, on my second overnight trip the frame started to make very loud popping and creaking noise when walking on uneven terrain. I found myself choosing my path to keep my pack quiet. That gets old really quickly especially when hiking off trail. I will be returning it.
September 8, 2025
Zulu 45
This pack has great features, is well built, and is perfectly sized.
Originally reviewed on Gregory
July 17, 2025
Very nice bag!
Bag is great. I’ve been using it as a 50lb ruck and it’s holding up well. 50lbs is a bit much for this bag but it’s built really well.

Originally reviewed on ExpertVoice.com
May 30, 2025
Seam failure
I bought a Zulu45 in April 2024. I used it on an AT hike. In May 2025 the seam attaching shoulder strap to pack failed while I was in the middle of a two week AT hike.
Originally reviewed on Gregory
May 9, 2025
Carry-on compatible
Fits fantastically. Airline carryon compatible. The best fitting backpack I've owned. I like the two options for opening top and side.
Originally reviewed on Gregory
November 25, 2024
A good upgrade from a Zulu 35
I wanted a slightly larger pack for winter as I end up carrying more things, and this fits the bill! It has a different design compared to the Zulu 35, and the pouches and pockets are slightly different, but overall, this makes it easier to use. I did notice that the glasses holder on the shoulder strap has been deleted, which is a shame, but overall, this is a great pack to add to the gear closet and trails!

Originally reviewed on ExpertVoice.com
August 21, 2024
perfect beginner or experienced backpacking pack
The pack was awesome, lots of easy access and love the front fold out zip to get anywhere in your pack easily. Even though it’s a 45L pack, for someone with all ultralight gear, it’s perfect for multi night or just one. Pack was also super comfortable on my back and hips!

Originally reviewed on ExpertVoice.com
July 20, 2024
Great comfortable pack…Where’s the rain cover???
I’ve had the smaller 30L version of this pack for years and have been very happy with it. My wife and son just purchased, on closeout, last years 40L Zulu and we were very impressed with the size of the side and hip belt pockets along with a very comfortable suspension system. In addition, they came with an included rain cover. In order to get the size I needed, I ordered this year’s “upgraded” 45L version. Unfortunately, this great pack no longer comes with a rain cover. What gives?
Originally reviewed on Gregory
May 21, 2024
I Do not recommend Gregory Zulu 45
Love the pack but the chest strap is cheaply made. Wish I had checked the reviews before purchasing . I definitely do not recommend this product. I also have the the Jade 38 and pray that the strap is better made than the Zulu 45
Originally reviewed on Gregory
Do you have a question about this product?
December 12, 2023
Which rain cover is recommended for the Zulu 45?
Originally reviewed on Gregory
October 10, 2023
Does the Zulu 45 come with a rain guard for the pack?
Originally reviewed on Gregory
July 2, 2023
Is the zulu 45 l can be a carry-on
Originally reviewed on Gregory
June 28, 2023
are the latest Zulu and Jade equipped with raincover?
Originally reviewed on Gregory
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