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Gregory Octal 55 Women's Internal Frame Backpack

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Gregory Octal 55 Women's Internal Frame Backpack

By Becky

Enwild Gear Specialist

The Enwild Difference

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The innovative Gregory Octal 55 Women's internal frame backpack tips the scales at just 2.5 pounds but comes equipped with a feature set and load-hauling capability that most packs that weight simply cannot offer.


The innovative Gregory Octal 55 Women's internal frame backpack tips the scales at just 2.5 pounds but comes equipped with a feature set and load-hauling capability that most packs that weight simply cannot offer.

Addressing the different wants and needs of female hikers, Gregory's Women's backpacks cater to the woman on the go. Designed and tested by women, these packs incorporate shoulder harnesses contoured to fit the female figure and hipbelt panels built to adjust to fit women's hip angles. Reflecting the difference in male and female ergonomics, these packs also employ narrower backpanels.

The pack's suspension system utilizes a perimeter frame constructed of ultra-lightweight 7001 aluminum and includes anti-barreling support to ensure that weight is balanced and stabilized. Weight is transferred to the load-bearing lumbar support to minimize fatigue on your shoulders and back. A ventilated backpanel and dual-density padding in the contoured harness and hipbelt combine to increase comfort, fit, and breathability. Load lifter straps and an adjustable sternum strap further enhance fit and ensure stability. To ensure a customized fit, the pack is available in Xsmall (best fits 14"-16" torso lengths), Small (16"-18"), and Medium (18"-20") size options.

The top-loading pack offers more than 3100 cubic inches of storage capacity. A protective top lid includes internal storage but can also be removed entirely when the additional storage isn't needed or you simply want to travel lighter. Even with the lid removed, a small, buckled flap protects the interior of the packbag. A large front stretch pocket enables you to keep discarded layers or other gear close at hand. Side compression straps allow you to cinch down the packbag to keep the contents of the pack stabilized and also double as external lash points.

Other features include large side stretch water bottle pockets, zippered hipbelt pockets, trekking pole attachments, a front harness quick-stow feature for sunglasses, and an included raincover. An integrated sleeve and exit port make the pack hydration compatible (hydration system sold separately).

The Gregory Octal 55 Women's internal frame backpack is available in your choice of size and color options.

  • AeroSpan suspension offers 360 degree moisture wicking ventilation and tensioned perimeter frame load management while maintaining a lightweight design
  • Ventilated dual-density FocusForm shoulder harness and extra supportive hipbelt with targeted comfort zones
  • Leaf-spring lumbar pad for comfortable, energy-saving load transfer
  • Ultralight 7001 aluminum perimeter frame with anti-barreling support
  • Removable top lid
  • Ultralight weather flap for use without top lid
  • Raincover included in top pocket
  • Sunglass quickstow
  • Front stretch mesh pocket
  • Quick access water bottle stow
  • Internal hydration sleeve and port
California residents: view proposition 65  Warning

Technical Specs

Best Use
Top Loading
Item Dimensions
XSmall: 24" x 13" x 11"
Small: 26" x 13" x 11"
Medium: 28" x 13" x 12"
Fits Torso
XSmall: 14" - 16"
Small: 16" - 18"
Medium: 18" - 20"
Frame Material
Hydration Compatible
Maximum Weight
35 lbs
Sternum Strap
Yes; Adjustable
XSmall: 3173 cu in
Small: 3356 cu in
Medium: 3539 cu in
Limited Lifetime
Internal Frame Backpack
Item Weight
XSmall: 2 lbs 5 oz
Small: 2 lbs 6 oz
Medium: 2 lbs 7 oz
Rain Cover Included

14 Reviews

4.36 / 5

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Great pack!


Great lightweight pack. Appreciate that it came with a rain cover. Easy to adjust. Carried about 17lbs of gear well. Color is really nice in person too.



Erica F.


good lightweight pack


I love the fit of GREGORY packs and the way they hug your body while hiking. I did not hike with this pack but I packed it with all of my backpacking gear and it seemed to have the same great fit of my other gregory packs. I liked that it was far lighter than my Gregory Diva. I liked that there were not as many straps hanging all over off of my pack.


I did not like the top of the bag and the way it closed. There was no way to expand the lid cover to fit over the pack if i filled it to a higher point, which meant i could only fill the bag to a certain point, and it meant I could not easily throw a jacket or a sleeping pad across the top under the lid. I understand that the bag was made for the purpose of being lightweight, so the following dislikes were probably due to removing ounces. The waist belt was not as comfortable as my other packs, and the belt itself was very narrow and thin. The compression straps seems really thin and I worried about their durability long term.

Brandon O.


well thought out backpack wile being light and simple


can remove brain for day trips great support frame system and breathable easy access to water bottle well thought out all around and minimalistic for light weight


none so far



Light Weight Backpack Finally


The pack is super lightweight. Like the bright blue color.


The material looks thin and delicate.



Great Bag





Laurel R.


Very light fully featured


Weight Removable brain. Frame system


Does not compress well

Joan D.


Light Pack


Lightweight, good organization features, materials are light but seem durable.


Hip belt is on the short side for us hippy gals.

Michele S.


Very comfortable pack, but has other issues.


The suspension system and ventilated backpanel is great. I use this as my work pack on a NPS trail crew and it gets loaded up on a daily basis and it carries the weight of tools, water and other gear nicely.


The hip belt straps and buckles and shoulder cinch straps and buckles are so small! My Gregory Jade 28 has wider straps and buckles than this 55. As I’m hiking and working, I am constantly taking my pack off and putting it back on and the straps and buckles are really difficult to find in work gloves. I really miss the Gregory Z55 pack, best work pack ever.

Lily T.


Easy to use and lightweight


The main compartment is a drawstring closure that is really quick to open and close (compared to a roll top I feel). There’s 2 water bottle pockets and a huge mesh stash pocket. I think it’s the perfect amount of pockets. More and it’s easy to forget where you put things. There’s pockets on the outside and underside of the removable top lid.


Sacrifice some durability for the light weight. The material does feel quite thin especially the mesh.

Amanda C.


Should straps could be better


I have a problem finding packs bc I have lumbar lordosis and a anterior pelvic tilt. So packs tend to dig into my lumbar rather than sit against it. This pack is great for my lower back. I absolutely love everything about this pack except the shoulder straps. I love how minimal it is. I don't have to remember what pocket or zipper something is in. Plus I love the blue/indigo color!


Shoulder straps aren't comfortable. It doesn't hold the top part of the pack secure and the top wobbles a lot. I've tried several packs and I guess I have to sacrifice shoulder comfort for lower back comfort.

Susan S.


Love this pack


Light weight but still has all the features I want. The hip belt pockets sold me on this pack vs the Osprey Eja. I used it on a 4 day hike, carrying about 28 lbs & it remained comfortable the entire hike.


I'm a little concerned about the durability, but Gregory's great reputation puts me at ease.

Sally C.


xsmall too large :(


lightweight capacity & features


shoulder straps too high up on my shoulders, couldn't adjust to get them low enough, foam on straps rough & felt like they would easily chafe- had to return.