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Gregory Octal 45

An ultralight pack for maximized efficiency when you're logging high miles day after day.

Keep your kit ultralight and supported with the AeroSpan ventilated suspension. When you're putting in long days back-to-back-to-back, the comfort and support from the lightweight Octal 45 will maximize efficiency.



  • AeroSpan ventilated suspension with moisture wicking mesh.
  • Ultralight 7001 tubular aluminum frame with leaf-spring lumbar pad and anti-barreling support.
  • Women's specific FocusForm dual density shoulder harness with LifeSpan EVA foam and sternum strap with hydration clip.
  • Women's specific padded LifeSpan EVA foam hipbelts with large zippered pockets.
  • Custom fitted raincover included - stows in a quick access zippered pocket on underside of the top lid.
  • Sunglass QuickStow system on shoulder harness for quick, secure and scratch-free access to your shades.
  • Ultralight weather flap included -stows in a quick access zippered pocket on underside of the top lid.
  • Top pocket with zippered compartment and an underside zippered pocket, attachment points, and key clip.
  • Hydration sleeve with universal hangar and exit port.
  • Ultralight V-compression with pass-through for over or under compression.
  • Front oversized stretch mesh pocket and side stretch mesh pockets with side trail access.
  • Dual trekking pole/tool attachment points with bungee closure system.
  • Custom comfort-grip molded zipper pulls and molded webbing keepers for strap management.


Ideal Fit For Women
Activity Backpacking
Internal Frame Yes
Frame Type Perimeter wire
Suspension Technology AeroSpan
Compartment Access Top
Closure Type Drawcord
Number of External Pockets 3
Hydration Compatible Yes
Hydration Reservoir Included No
Raincover Included Yes
Hipbelt Included Yes
Hipbelt Pockets Yes
Trekking Pole Attachment Yes

Fits Torso 14"- 16" / 35.6 - 40.6cm
Fits Hips/Waist 26" - 45" / 66 - 114.3cm
Weight 2.3lbs / 1.04kg
Volume 42L / 2563cu in
Rain Cover Weight 0.2lbs / 91g
Stripped Weight 2.2lbs / 1.00kg
Max Carry Weight 30lbs / 14kg
Packed Dimensions 24" x 12.5" x 10" / 61cm x 31.8cm x 25.4cm


External Material 100% Nylon
Frame Materials 7mm Tubular 7001 aluminum, 3mm Alloy anti-barreling stay & HDPE
Pack Body 100D High Tenacity Nylon
Pack Bottom 210D High Tenacity Nylon / 135D High Density polyester
Lining 135D High Density Embossed Polyester
Suspension Multi-Density LifeSpan EVA foam