Gregory Womens Octal 45 Litre Rucksack

45 Litres / Internal Frame / Hydration Compatible / Designed to carry 14kg
Weighs 1046g (Small size)
Code: SS18244
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A women specific design in an ultralight pack from Gregory means weight savings without the loss of practical features. Another top quality pack that looks great and performs even better with a super comfortable fit.

Gregory says:

We think an ultralight pack with proper support and essential features provides a better experience - more efficient and much more enjoyable - than hyper-minimalist stuff sack with zero structure. The difference shows the morning after a 25km day, when the Octal 45 proves that comfort is one trail essential you can't live without.

Gregory's Octal 45 Rucksack utilizes Gregory's new AeroSpan suspension system which is an ultralight version of their VaporSpan suspension. It delivers the same combination of 360-degree moisture-wicking ventilation and tensioned perimeter frame load management while paying obsessive attention to weight reduction. It also features FocusForm shoulder harness and hipbelts and LifeSpan foam to provide lightweight comfort that should outlast other weight-conscious cushioning materials.

The rucksack fits in a lot of features while still managing to keep the weight down. You even have the option of removing the lid and swapping it for the ultralight weather flap to go full on minimalist. The only small issue I had with this is that it can be a little fiddly to remove the lid and I would have preferred a simple clip instead of threading it through the buckle - yes it might have added a few extra grams but that's just my preference as I feel the more it gets used the more difficult it might become to remove and attach.

Overall it's a great pack for backpackers and hikers who don't want to carry loads any more than 16kg.

- Reviewed by Ultralight Outdoor Gear

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  • AeroSpan suspension with EVAP moisture wicking shallow-depth ventilated back panel
  • Ventilated, dual-density FocusForm shoulder harness and extra supportive hip belts with targeted comfort zones 
  • Leaf-Spring Lumbar pad for comfortable, energy-saving load transfer 
  • Ultra-light 7001 aluminum perimeter frame with Anti-barreling support
  • Included custom fitted rain cover stows in the top pocket for quick access in unexpected showers
  • Removable top zippered pocket to shed ounces and swap-in included ultra-light weather flap to stay protected (stows in top pocket)
  • Sunglass QuickStow system on shoulder harness for quick, secure and scratch-free access to your shades without taking the pack off
  • Quick access on-the-go water bottle stow access on both the right and Left sides
  • Oversized, durable front stretch mesh pocket for quick access organization
  • Dual zippered hip belt pockets provide secure, easy to access storage 
  • Dual stretch mesh side pockets with Large capacity for bottles, camp sandals, trekking poles 
  • Dual adjustable attachment loops and upper shock locks for trekking poles or ice axes 
  • Ultra-light V-Compression system on side and bottom of bags 
  • Lower side compression pass-through on side pocket for over/under option 
  • Gear attachment points on top pocket and main body
  • Max carry: 14 kg / 30 lbs
  • Frame: Size Specific Ultralight 7001 Aluminium Perimeter Frame
  • Fabric Body: 100D High Tenacity Nylon
  • Fabric Base: 210D High Tenacity Nylon
  • Fabric - Other: 135D High Density Polyester


  • Weight with lid: 1044g
  • Weight without lid + weather flap: 992g
  • Raincover weighs: 90g
  • Capacity: 42L
  • Dimensions HxWxD: 61 x 32 x 25 cm
  • Torso size: 36 – 41 cm


  • Weight with lid: 1100g
  • Weight without lid & weather flap: 1046g
  • Raincover weighs: 78g
  • Capacity: 45L
  • Dimensions HxWxD: 66 x 32 x 27 cm
  • Torso size: 41 – 46 cm


  • Weight with lid: 1140g
  • Weight without lid & weather flap: 1090g
  • Raincover weighs: 96g
  • Capacity: 48L
  • Dimensions HxWxD: 71 x 32 x 29 cm
  • Torso size: 46 – 51 cm
Showing our 1 review for Gregory Womens Octal 45 Litre Rucksack. Write a review ›
Review Summary - 2 out of 5 based on 1 rating.
September 15, 2020 | Paul Hicks
Incredibly Uncomfortable

After reading many complimentary reviews I bought this sack for my wife as she needed a light weight sack. First impression was good with many well though out & useful features. Also the trampoline back looked like it would provide plenty of ventilation. Unfortunately after wearing it for only 10 minutes my wife started to complain about the hard pad pushing into the bottom of her back. I tried the sack also & found exactly the same problem. Unlike Osprey, where the trampoline back continues to the bottom of the waist strap, the Octal's trampoline back stops short of the waist strap & much of the weight of the sack presses onto your back through the pad. 2 lessons learned: 1. don't believe reviews / try before you buy 2. Osprey sacks are much more comfortable!

Ultralight Outdoor Gear Limited